Data.

1977-09-18T22:59:59.999731779Z

Date and time

Components

Year	1977
Month	9
Day	18
Hour	22
Minute	59
Second (integer part)	59
Second (fraction part)	0.999731779
Time zone offset	+00:00

Day (1977-09-18)

Notes

Calendars

Proleptic Gregorian calendar	AD	1977-09-18
	Japan	昭和52年9月18日
	Ryuukyuu	昭和52年9月18日
Proleptic Julian calendar	AD	1977-09-05
	Japan	昭和52年9月5日
	Ryuukyuu	昭和52年9月5日
旧暦Kyuureki (Japan)	AD	1977年8月6日
	Japan (北朝)	昭和52年8月6日
	Japan (南朝)	昭和52年8月6日
旧暦Kyuureki (Ryuukyuu)	AD	1977年8月6日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和52年8月6日

Holidays

Japan	Sunday

Properties

Yearless date	--09-18
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)	先勝

Cast

Unix number	243471599.999732
Unix integer	243471599
HTML number	243471599999.732
HTML month number	92
Julian Day	2443405.45833333
Julian Day (integer of day)	2443405
Modified Julian Day	43404.9583333302
Rata Die	721980.95833333

Serializations

Global date and time string (time zone offset preserved)	1977-09-18T22:59:59.999731779Z
Global date and time string (UTC)	1977-09-18T22:59:59.999731779Z
Normalized forced-UTC global date and time string	1977-09-18T22:59:59.999731779Z
HTTP date	`Sun, 18 Sep 1977 22:59:59 GMT`
RSS2 date-time	`Sun, 18 Sep 1977 22:59:59 +0000`
`document.lastModified` format	`09/18/1977 22:59:59`
Local date and time string	1977-09-18T22:59:59.999731779
Normalized local date and time string	1977-09-18T22:59:59.999731779
Date string	1977-09-18
Date string with optional time	1977-09-18T22:59:59.999731779Z
Year string	1977
Month string	1977-09
Yearless date string	--09-18
Week string	1977-W37
Time string	22:59:59.999731779
Shortest time string	22:59:59.999731779

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	1976-09-18T22:59:59.999731779Z	1978-09-18T22:59:59.999731779Z
30 days	1977-08-19T22:59:59.999731779Z	1977-10-18T22:59:59.999731779Z
7 days	1977-09-11T22:59:59.999731779Z	1977-09-25T22:59:59.999731779Z
Day	1977-09-17T22:59:59.999731779Z	1977-09-19T22:59:59.999731779Z
Hour	1977-09-18T21:59:59.999731779Z	1977-09-18T23:59:59.999731779Z
Minute	1977-09-18T22:58:59.999731779Z	1977-09-18T23:00:59.999731779Z