Data.

1978-01-31T22:59:59.999987006Z

Date and time

Components

Year	1978
Month	1
Day	31
Hour	22
Minute	59
Second (integer part)	59
Second (fraction part)	0.999987006
Time zone offset	+00:00

Day (1978-01-31)

Notes

Calendars

Proleptic Gregorian calendar	AD	1978-01-31
	Japan	昭和53年1月31日
	Ryuukyuu	昭和53年1月31日
Proleptic Julian calendar	AD	1978-01-18
	Japan	昭和53年1月18日
	Ryuukyuu	昭和53年1月18日
旧暦Kyuureki (Japan)	AD	1977年12月23日
	Japan (北朝)	昭和52年12月23日
	Japan (南朝)	昭和52年12月23日
旧暦Kyuureki (Ryuukyuu)	AD	1977年12月23日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和52年12月23日

Holidays

Japan	Normal day

Properties

Yearless date	--01-31
Day of week (number)	2
Day of week (English)	Tuesday
Day of week (日本語)	火曜日
Kanshi	癸巳 (29₀, 30₁)
六曜 (Japan)	仏滅

Cast

Unix number	255135599.999987
Unix integer	255135599
HTML number	255135599999.987
HTML month number	96
Julian Day	2443540.45833333
Julian Day (integer of day)	2443540
Modified Julian Day	43539.958333333
Rata Die	722115.958333333

Serializations

Global date and time string (time zone offset preserved)	1978-01-31T22:59:59.999987006Z
Global date and time string (UTC)	1978-01-31T22:59:59.999987006Z
Normalized forced-UTC global date and time string	1978-01-31T22:59:59.999987006Z
HTTP date	`Tue, 31 Jan 1978 22:59:59 GMT`
RSS2 date-time	`Tue, 31 Jan 1978 22:59:59 +0000`
`document.lastModified` format	`01/31/1978 22:59:59`
Local date and time string	1978-01-31T22:59:59.999987006
Normalized local date and time string	1978-01-31T22:59:59.999987006
Date string	1978-01-31
Date string with optional time	1978-01-31T22:59:59.999987006Z
Year string	1978
Month string	1978-01
Yearless date string	--01-31
Week string	1978-W05
Time string	22:59:59.999987006
Shortest time string	22:59:59.999987006

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	1977-01-31T22:59:59.999987006Z	1979-01-31T22:59:59.999987006Z
30 days	1978-01-01T22:59:59.999987006Z	1978-03-02T22:59:59.999987006Z
7 days	1978-01-24T22:59:59.999987006Z	1978-02-07T22:59:59.999987006Z
Day	1978-01-30T22:59:59.999987006Z	1978-02-01T22:59:59.999987006Z
Hour	1978-01-31T21:59:59.999987006Z	1978-01-31T23:59:59.999987006Z
Minute	1978-01-31T22:58:59.999987006Z	1978-01-31T23:00:59.999987006Z