Data.

1931-09-20T00:59:59.999989986Z

Date and time

Components

Year	1931
Month	9
Day	20
Hour	0
Minute	59
Second (integer part)	59
Second (fraction part)	0.999989986
Time zone offset	+00:00

Day (1931-09-20)

Notes

Calendars

Proleptic Gregorian calendar	AD	1931-09-20
	Japan	昭和6年9月20日
	Ryuukyuu	昭和6年9月20日
Proleptic Julian calendar	AD	1931-09-07
	Japan	昭和6年9月7日
	Ryuukyuu	昭和6年9月7日
旧暦Kyuureki (Japan)	AD	1931年8月9日
	Japan (北朝)	昭和6年8月9日
	Japan (南朝)	昭和6年8月9日
旧暦Kyuureki (Ryuukyuu)	AD	1931年8月9日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和6年8月9日

Holidays

Japan	Sunday

Properties

Yearless date	--09-20
Day of week (number)	0
Day of week (English)	Sunday
Day of week (日本語)	日曜日
Kanshi	戊寅 (14₀, 15₁)
六曜 (Japan)	仏滅

Cast

Unix number	-1208127600.00001
Unix integer	-1208127601
HTML number	-1208127600000.01
HTML month number	-460
Julian Day	2426604.54166667
Julian Day (integer of day)	2426605
Modified Julian Day	26604.0416666665
Rata Die	705180.041666667

Serializations

Global date and time string (time zone offset preserved)	1931-09-20T00:59:59.999989986Z
Global date and time string (UTC)	1931-09-20T00:59:59.999989986Z
Normalized forced-UTC global date and time string	1931-09-20T00:59:59.999989986Z
HTTP date	`Sun, 20 Sep 1931 00:59:59 GMT`
RSS2 date-time	`Sun, 20 Sep 1931 00:59:59 +0000`
`document.lastModified` format	`09/20/1931 00:59:59`
Local date and time string	1931-09-20T00:59:59.999989986
Normalized local date and time string	1931-09-20T00:59:59.999989986
Date string	1931-09-20
Date string with optional time	1931-09-20T00:59:59.999989986Z
Year string	1931
Month string	1931-09
Yearless date string	--09-20
Week string	1931-W38
Time string	00:59:59.999989986
Shortest time string	00:59:59.999989986

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

	Previous	Next
365 days	1930-09-20T00:59:59.999989986Z	1932-09-19T00:59:59.999989986Z
30 days	1931-08-21T00:59:59.999989986Z	1931-10-20T00:59:59.999989986Z
7 days	1931-09-13T00:59:59.999989986Z	1931-09-27T00:59:59.999989986Z
Day	1931-09-19T00:59:59.999989986Z	1931-09-21T00:59:59.999989986Z
Hour	1931-09-19T23:59:59.999989986Z	1931-09-20T01:59:59.999989986Z
Minute	1931-09-20T00:58:59.999989986Z	1931-09-20T01:00:59.999989986Z