Data.

1988-05-20T22:59:59.999731779Z

Date and time

Components

Year	1988
Month	5
Day	20
Hour	22
Minute	59
Second (integer part)	59
Second (fraction part)	0.999731779
Time zone offset	+00:00

Day (1988-05-20)

Notes

Calendars

Proleptic Gregorian calendar	AD	1988-05-20
	Japan	昭和63年5月20日
	Ryuukyuu	昭和63年5月20日
Proleptic Julian calendar	AD	1988-05-07
	Japan	昭和63年5月7日
	Ryuukyuu	昭和63年5月7日
旧暦Kyuureki (Japan)	AD	1988年4月5日
	Japan (北朝)	昭和63年4月5日
	Japan (南朝)	昭和63年4月5日
旧暦Kyuureki (Ryuukyuu)	AD	1988年4月5日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和63年4月5日

Holidays

Japan	Normal day

Properties

Yearless date	--05-20
Day of week (number)	5
Day of week (English)	Friday
Day of week (日本語)	金曜日
Kanshi	乙亥 (11₀, 12₁)
六曜 (Japan)	友引

Cast

Unix number	580172399.999732
Unix integer	580172399
HTML number	580172399999.732
HTML month number	220
Julian Day	2447302.45833333
Julian Day (integer of day)	2447302
Modified Julian Day	47301.9583333302
Rata Die	725877.95833333

Serializations

Global date and time string (time zone offset preserved)	1988-05-20T22:59:59.999731779Z
Global date and time string (UTC)	1988-05-20T22:59:59.999731779Z
Normalized forced-UTC global date and time string	1988-05-20T22:59:59.999731779Z
HTTP date	`Fri, 20 May 1988 22:59:59 GMT`
RSS2 date-time	`Fri, 20 May 1988 22:59:59 +0000`
`document.lastModified` format	`05/20/1988 22:59:59`
Local date and time string	1988-05-20T22:59:59.999731779
Normalized local date and time string	1988-05-20T22:59:59.999731779
Date string	1988-05-20
Date string with optional time	1988-05-20T22:59:59.999731779Z
Year string	1988
Month string	1988-05
Yearless date string	--05-20
Week string	1988-W20
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

	Previous	Next
365 days	1987-05-21T22:59:59.999731779Z	1989-05-20T22:59:59.999731779Z
30 days	1988-04-20T22:59:59.999731779Z	1988-06-19T22:59:59.999731779Z
7 days	1988-05-13T22:59:59.999731779Z	1988-05-27T22:59:59.999731779Z
Day	1988-05-19T22:59:59.999731779Z	1988-05-21T22:59:59.999731779Z
Hour	1988-05-20T21:59:59.999731779Z	1988-05-20T23:59:59.999731779Z
Minute	1988-05-20T22:58:59.999731779Z	1988-05-20T23:00:59.999731779Z