Data.

1987-10-17T22:59:59.999731779Z

Date and time

Components

Year	1987
Month	10
Day	17
Hour	22
Minute	59
Second (integer part)	59
Second (fraction part)	0.999731779
Time zone offset	+00:00

Day (1987-10-17)

Notes

Calendars

Proleptic Gregorian calendar	AD	1987-10-17
	Japan	昭和62年10月17日
	Ryuukyuu	昭和62年10月17日
Proleptic Julian calendar	AD	1987-10-04
	Japan	昭和62年10月4日
	Ryuukyuu	昭和62年10月4日
旧暦Kyuureki (Japan)	AD	1987年8月25日
	Japan (北朝)	昭和62年8月25日
	Japan (南朝)	昭和62年8月25日
旧暦Kyuureki (Ryuukyuu)	AD	1987年8月25日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	昭和62年8月25日

Holidays

Japan	Saturday

Properties

Yearless date	--10-17
Day of week (number)	6
Day of week (English)	Saturday
Day of week (日本語)	土曜日
Kanshi	己亥 (35₀, 36₁)
六曜 (Japan)	友引

Cast

Unix number	561509999.999732
Unix integer	561509999
HTML number	561509999999.732
HTML month number	213
Julian Day	2447086.45833333
Julian Day (integer of day)	2447086
Modified Julian Day	47085.9583333302
Rata Die	725661.95833333

Serializations

Global date and time string (time zone offset preserved)	1987-10-17T22:59:59.999731779Z
Global date and time string (UTC)	1987-10-17T22:59:59.999731779Z
Normalized forced-UTC global date and time string	1987-10-17T22:59:59.999731779Z
HTTP date	`Sat, 17 Oct 1987 22:59:59 GMT`
RSS2 date-time	`Sat, 17 Oct 1987 22:59:59 +0000`
`document.lastModified` format	`10/17/1987 22:59:59`
Local date and time string	1987-10-17T22:59:59.999731779
Normalized local date and time string	1987-10-17T22:59:59.999731779
Date string	1987-10-17
Date string with optional time	1987-10-17T22:59:59.999731779Z
Year string	1987
Month string	1987-10
Yearless date string	--10-17
Week string	1987-W42
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	1986-10-17T22:59:59.999731779Z	1988-10-16T22:59:59.999731779Z
30 days	1987-09-17T22:59:59.999731779Z	1987-11-16T22:59:59.999731779Z
7 days	1987-10-10T22:59:59.999731779Z	1987-10-24T22:59:59.999731779Z
Day	1987-10-16T22:59:59.999731779Z	1987-10-18T22:59:59.999731779Z
Hour	1987-10-17T21:59:59.999731779Z	1987-10-17T23:59:59.999731779Z
Minute	1987-10-17T22:58:59.999731779Z	1987-10-17T23:00:59.999731779Z