Data.

1840-12-09T22:59:59.99973011Z

Date and time

Components

Year	1840
Month	12
Day	9
Hour	22
Minute	59
Second (integer part)	59
Second (fraction part)	0.99973011
Time zone offset	+00:00

Day (1840-12-09)

Notes

Calendars

Proleptic Gregorian calendar	AD	1840-12-09
	Japan	天保11年12月9日
	Ryuukyuu	道光20年12月9日
Proleptic Julian calendar	AD	1840-11-27
	Japan	天保11年11月27日
	Ryuukyuu	道光20年11月27日
旧暦Kyuureki (Japan)	AD	1840年11月16日
	Japan (北朝)	天保11年11月16日
	Japan (南朝)	天保11年11月16日
旧暦Kyuureki (Ryuukyuu)	AD	1840年11月16日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	道光20年11月16日

Holidays

Japan	Normal day

Properties

Yearless date	--12-09
Day of week (number)	3
Day of week (English)	Wednesday
Day of week (日本語)	水曜日
Kanshi	壬寅 (38₀, 39₁)
六曜 (Japan)	友引

Cast

Unix number	-4072726800.00027
Unix integer	-4072726801
HTML number	-4072726800000.27
HTML month number	-1549
Julian Day	2393449.45833333
Julian Day (integer of day)	2393449
Modified Julian Day	-6551.04166666977
Rata Die	672024.95833333

Serializations

Global date and time string (time zone offset preserved)	1840-12-09T22:59:59.99973011Z
Global date and time string (UTC)	1840-12-09T22:59:59.99973011Z
Normalized forced-UTC global date and time string	1840-12-09T22:59:59.99973011Z
HTTP date	`Wed, 09 Dec 1840 22:59:59 GMT`
RSS2 date-time	`Wed, 09 Dec 1840 22:59:59 +0000`
`document.lastModified` format	`12/09/1840 22:59:59`
Local date and time string	1840-12-09T22:59:59.99973011
Normalized local date and time string	1840-12-09T22:59:59.99973011
Date string	1840-12-09
Date string with optional time	1840-12-09T22:59:59.99973011Z
Year string	1840
Month string	1840-12
Yearless date string	--12-09
Week string	1840-W50
Time string	22:59:59.99973011
Shortest time string	22:59:59.99973011

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	1839-12-10T22:59:59.99973011Z	1841-12-09T22:59:59.99973011Z
30 days	1840-11-09T22:59:59.99973011Z	1841-01-08T22:59:59.99973011Z
7 days	1840-12-02T22:59:59.99973011Z	1840-12-16T22:59:59.99973011Z
Day	1840-12-08T22:59:59.99973011Z	1840-12-10T22:59:59.99973011Z
Hour	1840-12-09T21:59:59.99973011Z	1840-12-09T23:59:59.99973011Z
Minute	1840-12-09T22:58:59.99973011Z	1840-12-09T23:00:59.99973011Z