Data.

1921-10-12T21:58:59.999989986Z

Date and time

Components

Year	1921
Month	10
Day	12
Hour	21
Minute	58
Second (integer part)	59
Second (fraction part)	0.999989986
Time zone offset	+00:00

Day (1921-10-12)

Notes

Calendars

Proleptic Gregorian calendar	AD	1921-10-12
	Japan	大正10年10月12日
	Ryuukyuu	大正10年10月12日
Proleptic Julian calendar	AD	1921-09-29
	Japan	大正10年9月29日
	Ryuukyuu	大正10年9月29日
旧暦Kyuureki (Japan)	AD	1921年9月12日
	Japan (北朝)	大正10年9月12日
	Japan (南朝)	大正10年9月12日
旧暦Kyuureki (Ryuukyuu)	AD	1921年9月12日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	大正10年9月12日

Holidays

Japan	Normal day

Properties

Yearless date	--10-12
Day of week (number)	3
Day of week (English)	Wednesday
Day of week (日本語)	水曜日
Kanshi	戊申 (44₀, 45₁)
六曜 (Japan)	友引

Cast

Unix number	-1521684060.00001
Unix integer	-1521684061
HTML number	-1521684060000.01
HTML month number	-579
Julian Day	2422975.41597222
Julian Day (integer of day)	2422975
Modified Julian Day	22974.9159722221
Rata Die	701550.915972222

Serializations

Global date and time string (time zone offset preserved)	1921-10-12T21:58:59.999989986Z
Global date and time string (UTC)	1921-10-12T21:58:59.999989986Z
Normalized forced-UTC global date and time string	1921-10-12T21:58:59.999989986Z
HTTP date	`Wed, 12 Oct 1921 21:58:59 GMT`
RSS2 date-time	`Wed, 12 Oct 1921 21:58:59 +0000`
`document.lastModified` format	`10/12/1921 21:58:59`
Local date and time string	1921-10-12T21:58:59.999989986
Normalized local date and time string	1921-10-12T21:58:59.999989986
Date string	1921-10-12
Date string with optional time	1921-10-12T21:58:59.999989986Z
Year string	1921
Month string	1921-10
Yearless date string	--10-12
Week string	1921-W41
Time string	21:58:59.999989986
Shortest time string	21:58:59.999989986

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

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365 days	1920-10-12T21:58:59.999989986Z	1922-10-12T21:58:59.999989986Z
30 days	1921-09-12T21:58:59.999989986Z	1921-11-11T21:58:59.999989986Z
7 days	1921-10-05T21:58:59.999989986Z	1921-10-19T21:58:59.999989986Z
Day	1921-10-11T21:58:59.999989986Z	1921-10-13T21:58:59.999989986Z
Hour	1921-10-12T20:58:59.999989986Z	1921-10-12T22:58:59.999989986Z
Minute	1921-10-12T21:57:59.999989986Z	1921-10-12T21:59:59.999989986Z