Data.

1987-05-21T23:59:59.999732018Z

Date and time

Components

Year	1987
Month	5
Day	21
Hour	23
Minute	59
Second (integer part)	59
Second (fraction part)	0.999732018
Time zone offset	+00:00

Day (1987-05-21)

Notes

Calendars

Proleptic Gregorian calendar	AD	1987-05-21
	Japan	昭和62年5月21日
	Ryuukyuu	昭和62年5月21日
Proleptic Julian calendar	AD	1987-05-08
	Japan	昭和62年5月8日
	Ryuukyuu	昭和62年5月8日
旧暦Kyuureki (Japan)	AD	1987年4月24日
	Japan (北朝)	昭和62年4月24日
	Japan (南朝)	昭和62年4月24日
旧暦Kyuureki (Ryuukyuu)	AD	1987年4月24日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和62年4月24日

Holidays

Japan	Normal day

Properties

Yearless date	--05-21
Day of week (number)	4
Day of week (English)	Thursday
Day of week (日本語)	木曜日
Kanshi	庚午 (6₀, 7₁)
六曜 (Japan)	先負

Cast

Unix number	548639999.999732
Unix integer	548639999
HTML number	548639999999.732
HTML month number	208
Julian Day	2446937.5
Julian Day (integer of day)	2446937
Modified Julian Day	46936.9999999967
Rata Die	725512.999999997

Serializations

Global date and time string (time zone offset preserved)	1987-05-21T23:59:59.999732018Z
Global date and time string (UTC)	1987-05-21T23:59:59.999732018Z
Normalized forced-UTC global date and time string	1987-05-21T23:59:59.999732018Z
HTTP date	`Thu, 21 May 1987 23:59:59 GMT`
RSS2 date-time	`Thu, 21 May 1987 23:59:59 +0000`
`document.lastModified` format	`05/21/1987 23:59:59`
Local date and time string	1987-05-21T23:59:59.999732018
Normalized local date and time string	1987-05-21T23:59:59.999732018
Date string	1987-05-21
Date string with optional time	1987-05-21T23:59:59.999732018Z
Year string	1987
Month string	1987-05
Yearless date string	--05-21
Week string	1987-W21
Time string	23:59:59.999732018
Shortest time string	23:59:59.999732018

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	1986-05-21T23:59:59.999732018Z	1988-05-20T23:59:59.999732018Z
30 days	1987-04-21T23:59:59.999732018Z	1987-06-20T23:59:59.999732018Z
7 days	1987-05-14T23:59:59.999732018Z	1987-05-28T23:59:59.999732018Z
Day	1987-05-20T23:59:59.999732018Z	1987-05-22T23:59:59.999732018Z
Hour	1987-05-21T22:59:59.999732018Z	1987-05-22T00:59:59.999732018Z
Minute	1987-05-21T23:58:59.999732018Z	1987-05-22T00:00:59.999732018Z