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Title: Date - JavaScript | MDN

Open Graph Title: Date - JavaScript | MDN

Description: JavaScript Date objects represent a single moment in time in a platform-independent format. Date objects encapsulate an integral number that represents milliseconds since the midnight at the beginning of January 1, 1970, UTC (the epoch).

Open Graph Description: JavaScript Date objects represent a single moment in time in a platform-independent format. Date objects encapsulate an integral number that represents milliseconds since the midnight at the beginning of January 1, 1970, UTC (the epoch).

Opengraph URL: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date

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Standard built-in objectshttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
Datehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
https://github.com/orgs/mdn/discussions/739
https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Date
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
https://developer.mozilla.org/es/docs/Web/JavaScript/Reference/Global_Objects/Date
https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/Date
https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Date
https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Date
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https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Date
https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Date
Learn more https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility
See full compatibility https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#browser_compatibility
Temporalhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal
browser compatibilityhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal#browser_compatibility
Descriptionhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#description
Constructorhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#constructor
Static methodshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#static_methods
Instance propertieshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#instance_properties
Instance methodshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#instance_methods
Exampleshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#examples
Specificationshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#specifications
Browser compatibilityhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#browser_compatibility
See alsohttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#see_also
Descriptionhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#description
The epoch, timestamps, and invalid datehttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#the_epoch_timestamps_and_invalid_date
epochhttps://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-time-values-and-time-range
UNIX epochhttps://developer.mozilla.org/en-US/docs/Glossary/Unix_time
Number.MAX_SAFE_INTEGERhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER
NaNhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NaN
getTime()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime
setTime()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setTime
valueOf()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/valueOf
[Symbol.toPrimitive]()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Symbol.toPrimitive
number coercionhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number#number_coercion
Date.now()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
Date.parse()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse
Date.UTC()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC
Date()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
Date components and time zoneshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#date_components_and_time_zones
Greenwich Mean Timehttps://en.wikipedia.org/wiki/Greenwich_Mean_Time
getTimezoneOffset()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
getFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear
setFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear
getUTCFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear
setUTCFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear
getMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMonth
setMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMonth
getUTCMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth
setUTCMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth
getDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDate
setDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setDate
getUTCDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDate
setUTCDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCDate
getHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getHours
setHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setHours
getUTCHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCHours
setUTCHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCHours
getMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMinutes
setMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMinutes
getUTCMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes
setUTCMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes
getSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getSeconds
setSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setSeconds
getUTCSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds
setUTCSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds
getMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds
setMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds
getUTCMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
setUTCMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds
getDay()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDay
getUTCDay()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay
Date()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
Date.UTC()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC
getYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getYear
setYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setYear
Interpretation of two-digit yearshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#interpretation_of_two-digit_years
date time string formathttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#date_time_string_format
disambiguation: "compatible"https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/ZonedDateTime#ambiguity_and_gaps_from_local_time_to_utc_time
Date time string formathttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#date_time_string_format
date time string formathttps://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date-time-string-format
Broken Parser – A Web Reality Issuehttps://maggiepint.com/2017/04/11/fixing-javascript-date-web-compatibility-and-reality/
Date.parse()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse
Date()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
toISOString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
RFC 2822https://datatracker.ietf.org/doc/html/rfc2822
cross-browser testshttps://developer.mozilla.org/en-US/docs/Learn_web_development/Extensions/Testing
Date.parse()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse#examples
Other ways to format a datehttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#other_ways_to_format_a_date
toISOString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
ISO 8601https://en.wikipedia.org/wiki/ISO_8601
toJSON()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toJSON
toString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toString
toDateString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString
toTimeString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTimeString
[Symbol.toPrimitive]()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Symbol.toPrimitive
toUTCString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toUTCString
RFC 7231https://datatracker.ietf.org/doc/html/rfc7231
toLocaleDateString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString
toLocaleTimeString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString
toLocaleString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString
Intlhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl
Formats of toString method return valueshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#formats_of_tostring_method_return_values
Constructorhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#constructor
Date()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
Static methodshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#static_methods
Date.now()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
Date.parse()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse
Date.UTC()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC
Instance propertieshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#instance_properties
Date.prototype.constructorhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/constructor
Datehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
Instance methodshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#instance_methods
Date.prototype.getDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDate
Date.prototype.getDay()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDay
Date.prototype.getFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear
Date.prototype.getHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getHours
Date.prototype.getMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds
Date.prototype.getMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMinutes
Date.prototype.getMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMonth
Date.prototype.getSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getSeconds
Date.prototype.getTime()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime
Date.prototype.getTimezoneOffset()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
Date.prototype.getUTCDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDate
Date.prototype.getUTCDay()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay
Date.prototype.getUTCFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear
Date.prototype.getUTCHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCHours
Date.prototype.getUTCMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
Date.prototype.getUTCMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes
Date.prototype.getUTCMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth
Date.prototype.getUTCSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds
Date.prototype.getYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getYear
getFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear
Date.prototype.setDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setDate
Date.prototype.setFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear
Date.prototype.setHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setHours
Date.prototype.setMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds
Date.prototype.setMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMinutes
Date.prototype.setMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMonth
Date.prototype.setSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setSeconds
Date.prototype.setTime()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setTime
Date.prototype.setUTCDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCDate
Date.prototype.setUTCFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear
Date.prototype.setUTCHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCHours
Date.prototype.setUTCMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds
Date.prototype.setUTCMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes
Date.prototype.setUTCMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth
Date.prototype.setUTCSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds
Date.prototype.setYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setYear
setFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear
Date.prototype.toDateString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString
Date.prototype.toISOString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
Date.prototype.toJSON()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toJSON
toISOString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
JSON.stringify()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
Date.prototype.toLocaleDateString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString
Date.prototype.toLocaleString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString
Object.prototype.toLocaleString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toLocaleString
Date.prototype.toLocaleTimeString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString
Date.prototype.toString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toString
Object.prototype.toString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
Date.prototype.toTemporalInstant()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTemporalInstant
Temporal.Instanthttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/Instant
epochMillisecondshttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Temporal/Instant/epochMilliseconds
timestamphttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#the_epoch_timestamps_and_invalid_date
Date.prototype.toTimeString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTimeString
Date.prototype.toUTCString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toUTCString
Date.prototype.valueOf()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/valueOf
Object.prototype.valueOf()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/valueOf
Date.prototype[Symbol.toPrimitive]()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Symbol.toPrimitive
Exampleshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#examples
Several ways to create a Date objecthttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#several_ways_to_create_a_date_object
date time string formathttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#date_time_string_format
Formats of toString method return valueshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#formats_of_tostring_method_return_values
To get Date, Month and Year or Timehttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#to_get_date_month_and_year_or_time
Interpretation of two-digit yearshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#interpretation_of_two-digit_years
setFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear
getFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear
Calculating elapsed timehttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#calculating_elapsed_time
Performance APIhttps://developer.mozilla.org/en-US/docs/Web/API/Performance_API
Performance.now()https://developer.mozilla.org/en-US/docs/Web/API/Performance/now
Date.now()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
Get the number of seconds since the ECMAScript Epochhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#get_the_number_of_seconds_since_the_ecmascript_epoch
Math.floor()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor
Math.round()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round
Specificationshttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#specifications
ECMAScript® 2027 Language Specification# sec-date-objectshttps://tc39.es/ecma262/multipage/numbers-and-dates.html#sec-date-objects
Browser compatibilityhttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#browser_compatibility
See alsohttps://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Date#see_also
Date()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
Learn how to contributehttps://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started
MDN contributorshttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/contributors.txt
View this page on GitHubhttps://github.com/mdn/content/blob/main/files/en-us/web/javascript/reference/global_objects/date/index.md?plain=1
Report a problem with this contenthttps://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FJavaScript%2FReference%2FGlobal_Objects%2FDate&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fweb%2Fjavascript%2Freference%2Fglobal_objects%2Fdate%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FJavaScript%2FReference%2FGlobal_Objects%2FDate%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fweb%2Fjavascript%2Freference%2Fglobal_objects%2Fdate%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F7e14795a6ef2bf5e760c315ce64800dd1cd98c29%0A*+Document+last+modified%3A+2025-12-08T17%3A29%3A19.000Z%0A%0A%3C%2Fdetails%3E
Standard built-in objectshttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects
Datehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
Date()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Date
now()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
parse()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse
UTC()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC
getDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDate
getDay()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDay
getFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear
getHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getHours
getMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds
getMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMinutes
getMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMonth
getSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getSeconds
getTime()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime
getTimezoneOffset()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
getUTCDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDate
getUTCDay()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay
getUTCFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear
getUTCHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCHours
getUTCMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
getUTCMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes
getUTCMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth
getUTCSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds
getYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getYear
setDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setDate
setFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear
setHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setHours
setMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds
setMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMinutes
setMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMonth
setSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setSeconds
setTime()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setTime
setUTCDate()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCDate
setUTCFullYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear
setUTCHours()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCHours
setUTCMilliseconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds
setUTCMinutes()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes
setUTCMonth()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth
setUTCSeconds()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds
setYear()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setYear
toDateString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString
toISOString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
toJSON()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toJSON
toLocaleDateString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString
toLocaleString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString
toLocaleTimeString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString
toString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toString
toTemporalInstant()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTemporalInstant
toTimeString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTimeString
toUTCString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toUTCString
valueOf()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/valueOf
[Symbol.toPrimitive]()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/Symbol.toPrimitive
Object/Functionhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object
apply()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply
bind()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
call()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call
toString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/toString
[Symbol.hasInstance]()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/Symbol.hasInstance
displayNamehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/displayName
lengthhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/length
namehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
prototypehttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/prototype
argumentshttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/arguments
callerhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/caller
__defineGetter__()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineGetter__
__defineSetter__()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__defineSetter__
__lookupGetter__()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__lookupGetter__
__lookupSetter__()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__lookupSetter__
hasOwnProperty()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty
isPrototypeOf()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isPrototypeOf
propertyIsEnumerable()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/propertyIsEnumerable
toLocaleString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toLocaleString
toString()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
valueOf()https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/valueOf
__proto__https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/proto
constructorhttps://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/constructor
MDNhttps://developer.mozilla.org/
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https://mastodon.social/@mdn
https://developer.mozilla.org/en-US/blog/rss.xml
About https://developer.mozilla.org/en-US/about
Blog https://developer.mozilla.org/en-US/blog/
Mozilla careers https://www.mozilla.org/en-US/careers/listings/
Advertise with us https://developer.mozilla.org/en-US/advertising
MDN Plus https://developer.mozilla.org/en-US/plus
Product help https://support.mozilla.org/products/mdn-plus
MDN Community https://developer.mozilla.org/en-US/community
Community resources https://developer.mozilla.org/en-US/docs/MDN/Community
Writing guidelines https://developer.mozilla.org/en-US/docs/MDN/Writing_guidelines
MDN Discord https://developer.mozilla.org/discord
MDN on GitHub https://github.com/mdn
Web technologies https://developer.mozilla.org/en-US/docs/Web
Learn web development https://developer.mozilla.org/en-US/docs/Learn_web_development
Guides https://developer.mozilla.org/en-US/docs/MDN/Guides
Tutorials https://developer.mozilla.org/en-US/docs/MDN/Tutorials
Glossary https://developer.mozilla.org/en-US/docs/Glossary
Hacks blog https://hacks.mozilla.org/
Mozillahttps://www.mozilla.org/
Website Privacy Noticehttps://www.mozilla.org/privacy/websites/
Telemetry Settingshttps://www.mozilla.org/en-US/privacy/websites/data-preferences/
Legalhttps://www.mozilla.org/about/legal/terms/mozilla
Community Participation Guidelineshttps://www.mozilla.org/about/governance/policies/participation/
a Creative Commons licensehttps://developer.mozilla.org/docs/MDN/Writing_guidelines/Attrib_copyright_license

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