Data.

1687-09-23T00:59:59.999984741Z

Date and time

Components

Year	1687
Month	9
Day	23
Hour	0
Minute	59
Second (integer part)	59
Second (fraction part)	0.999984741
Time zone offset	+00:00

Day (1687-09-23)

Notes

Calendars

Proleptic Gregorian calendar	AD	1687-09-23
	Japan	贞享4年9月23日
	Ryuukyuu	康熙26年9月23日
Proleptic Julian calendar	AD	1687-09-13
	Japan	贞享4年9月13日
	Ryuukyuu	康熙26年9月13日
旧暦Kyuureki (Japan)	AD	1687年8月17日
	Japan (北朝)	贞享4年8月17日
	Japan (南朝)	贞享4年8月17日
旧暦Kyuureki (Ryuukyuu)	AD	1687年8月17日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	康熙26年8月17日

Holidays

Japan	Normal day

Properties

Yearless date	--09-23
Day of week (number)	2
Day of week (English)	Tuesday
Day of week (日本語)	火曜日
Kanshi	癸亥 (59₀, 60₁)
六曜 (Japan)	赤口

Cast

Unix number	-8907663600.00002
Unix integer	-8907663601
HTML number	-8907663600000.02
HTML month number	-3388
Julian Day	2337489.54166667
Julian Day (integer of day)	2337490
Modified Julian Day	-62510.9583333335
Rata Die	616065.041666667

Serializations

Global date and time string (time zone offset preserved)	1687-09-23T00:59:59.999984741Z
Global date and time string (UTC)	1687-09-23T00:59:59.999984741Z
Normalized forced-UTC global date and time string	1687-09-23T00:59:59.999984741Z
HTTP date	`Tue, 23 Sep 1687 00:59:59 GMT`
RSS2 date-time	`Tue, 23 Sep 1687 00:59:59 +0000`
`document.lastModified` format	`09/23/1687 00:59:59`
Local date and time string	1687-09-23T00:59:59.999984741
Normalized local date and time string	1687-09-23T00:59:59.999984741
Date string	1687-09-23
Date string with optional time	1687-09-23T00:59:59.999984741Z
Year string	1687
Month string	1687-09
Yearless date string	--09-23
Week string	1687-W39
Time string	00:59:59.999984741
Shortest time string	00:59:59.999984741

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	1686-09-23T00:59:59.999984741Z	1688-09-22T00:59:59.999984741Z
30 days	1687-08-24T00:59:59.999984741Z	1687-10-23T00:59:59.999984741Z
7 days	1687-09-16T00:59:59.999984741Z	1687-09-30T00:59:59.999984741Z
Day	1687-09-22T00:59:59.999984741Z	1687-09-24T00:59:59.999984741Z
Hour	1687-09-22T23:59:59.999984741Z	1687-09-23T01:59:59.999984741Z
Minute	1687-09-23T00:58:59.999984741Z	1687-09-23T01:00:59.999984741Z