Data.

1979-02-17T23:59:59.999732018Z

Date and time

Components

Year	1979
Month	2
Day	17
Hour	23
Minute	59
Second (integer part)	59
Second (fraction part)	0.999732018
Time zone offset	+00:00

Day (1979-02-17)

Notes

Calendars

Proleptic Gregorian calendar	AD	1979-02-17
	Japan	昭和54年2月17日
	Ryuukyuu	昭和54年2月17日
Proleptic Julian calendar	AD	1979-02-04
	Japan	昭和54年2月4日
	Ryuukyuu	昭和54年2月4日
旧暦Kyuureki (Japan)	AD	1979年正月21日
	Japan (北朝)	昭和54年正月21日
	Japan (南朝)	昭和54年正月21日
旧暦Kyuureki (Ryuukyuu)	AD	1979年正月21日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和54年正月21日

Holidays

Japan	Saturday

Properties

Yearless date	--02-17
Day of week (number)	6
Day of week (English)	Saturday
Day of week (日本語)	土曜日
Kanshi	乙卯 (51₀, 52₁)
六曜 (Japan)	先負

Cast

Unix number	288143999.999732
Unix integer	288143999
HTML number	288143999999.732
HTML month number	109
Julian Day	2443922.5
Julian Day (integer of day)	2443922
Modified Julian Day	43921.9999999967
Rata Die	722497.999999997

Serializations

Global date and time string (time zone offset preserved)	1979-02-17T23:59:59.999732018Z
Global date and time string (UTC)	1979-02-17T23:59:59.999732018Z
Normalized forced-UTC global date and time string	1979-02-17T23:59:59.999732018Z
HTTP date	`Sat, 17 Feb 1979 23:59:59 GMT`
RSS2 date-time	`Sat, 17 Feb 1979 23:59:59 +0000`
`document.lastModified` format	`02/17/1979 23:59:59`
Local date and time string	1979-02-17T23:59:59.999732018
Normalized local date and time string	1979-02-17T23:59:59.999732018
Date string	1979-02-17
Date string with optional time	1979-02-17T23:59:59.999732018Z
Year string	1979
Month string	1979-02
Yearless date string	--02-17
Week string	1979-W07
Time string	23:59:59.999732018
Shortest time string	23:59:59.999732018

Your browser

`toString`
`toISOString`
`toDateString`
`toTimeString`
`toGMTString`
`toUTCString`
`toJSON`

`toLocaleString`	undefined
	`en`
	`en-US`
	`en-GB`
	`fr`
	`fr-CA`
	`es`
	`es-US`
	`it`
	`de`
	`ja`
	`ja-JP`
	`ja-JP-u-ca-japanese`
	`zh`
	`zh-CN`
	`zh-TW`
	`zh-HK`
	`zh-MO`
	`zh-SG`
	`zh-Hant`
	`zh-Hani`
	`zh-u-ca-chinese`
	`zh-TW-u-ca-roc`
	`ko`
	`th`
	`th-u-ca-buddhist-nu-thai`
	`th-u-nu-arab`
	`ar-EG`
	`ar-SA`
	`ar-SA-u-ca-islamic-nu-latn`
`toLocaleDateString`	undefined
`toLocaleTimeString`	undefined

Links

	Previous	Next
365 days	1978-02-17T23:59:59.999732018Z	1980-02-17T23:59:59.999732018Z
30 days	1979-01-18T23:59:59.999732018Z	1979-03-19T23:59:59.999732018Z
7 days	1979-02-10T23:59:59.999732018Z	1979-02-24T23:59:59.999732018Z
Day	1979-02-16T23:59:59.999732018Z	1979-02-18T23:59:59.999732018Z
Hour	1979-02-17T22:59:59.999732018Z	1979-02-18T00:59:59.999732018Z
Minute	1979-02-17T23:58:59.999732018Z	1979-02-18T00:00:59.999732018Z