Data.

1971-09-21T23:59:59.999637902Z

Date and time

Components

Year	1971
Month	9
Day	21
Hour	23
Minute	59
Second (integer part)	59
Second (fraction part)	0.999637902
Time zone offset	+00:00

Day (1971-09-21)

Notes

Calendars

Proleptic Gregorian calendar	AD	1971-09-21
	Japan	昭和46年9月21日
	Ryuukyuu	西曆1971年9月21日
Proleptic Julian calendar	AD	1971-09-08
	Japan	昭和46年9月8日
	Ryuukyuu	西曆1971年9月8日
旧暦Kyuureki (Japan)	AD	1971年8月3日
	Japan (北朝)	昭和46年8月3日
	Japan (南朝)	昭和46年8月3日
旧暦Kyuureki (Ryuukyuu)	AD	1971年8月3日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	西曆1971年8月3日

Holidays

Japan	Normal day
Ryukyu	Normal day

Properties

Yearless date	--09-21
Day of week (number)	2
Day of week (English)	Tuesday
Day of week (日本語)	火曜日
Kanshi	己酉 (45₀, 46₁)
六曜 (Japan)	仏滅

Cast

Unix number	54345599.9996379
Unix integer	54345599
HTML number	54345599999.6379
HTML month number	20
Julian Day	2441216.5
Julian Day (integer of day)	2441216
Modified Julian Day	41215.9999999958
Rata Die	719791.999999996

Serializations

Global date and time string (time zone offset preserved)	1971-09-21T23:59:59.999637902Z
Global date and time string (UTC)	1971-09-21T23:59:59.999637902Z
Normalized forced-UTC global date and time string	1971-09-21T23:59:59.999637902Z
HTTP date	`Tue, 21 Sep 1971 23:59:59 GMT`
RSS2 date-time	`Tue, 21 Sep 1971 23:59:59 +0000`
`document.lastModified` format	`09/21/1971 23:59:59`
Local date and time string	1971-09-21T23:59:59.999637902
Normalized local date and time string	1971-09-21T23:59:59.999637902
Date string	1971-09-21
Date string with optional time	1971-09-21T23:59:59.999637902Z
Year string	1971
Month string	1971-09
Yearless date string	--09-21
Week string	1971-W38
Time string	23:59:59.999637902
Shortest time string	23:59:59.999637902

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	1970-09-21T23:59:59.999637902Z	1972-09-20T23:59:59.999637902Z
30 days	1971-08-22T23:59:59.999637902Z	1971-10-21T23:59:59.999637902Z
7 days	1971-09-14T23:59:59.999637902Z	1971-09-28T23:59:59.999637902Z
Day	1971-09-20T23:59:59.999637902Z	1971-09-22T23:59:59.999637902Z
Hour	1971-09-21T22:59:59.999637902Z	1971-09-22T00:59:59.999637902Z
Minute	1971-09-21T23:58:59.999637902Z	1971-09-22T00:00:59.999637902Z