Data.

1840-09-30T22:59:59.999732018Z

Date and time

Components

Year	1840
Month	9
Day	30
Hour	22
Minute	59
Second (integer part)	59
Second (fraction part)	0.999732018
Time zone offset	+00:00

Day (1840-09-30)

Notes

Calendars

Proleptic Gregorian calendar	AD	1840-09-30
	Japan	天保11年9月30日
	Ryuukyuu	道光20年9月30日
Proleptic Julian calendar	AD	1840-09-18
	Japan	天保11年9月18日
	Ryuukyuu	道光20年9月18日
旧暦Kyuureki (Japan)	AD	1840年9月5日
	Japan (北朝)	天保11年9月5日
	Japan (南朝)	天保11年9月5日
旧暦Kyuureki (Ryuukyuu)	AD	1840年9月5日
旧暦Kyuureki (Ryuukyuu)	Ryuukyuu	道光20年9月5日

Holidays

Japan	Normal day

Properties

Yearless date	--09-30
Day of week (number)	3
Day of week (English)	Wednesday
Day of week (日本語)	水曜日
Kanshi	壬辰 (28₀, 29₁)
六曜 (Japan)	先勝

Cast

Unix number	-4078774800.00027
Unix integer	-4078774801
HTML number	-4078774800000.27
HTML month number	-1552
Julian Day	2393379.45833333
Julian Day (integer of day)	2393379
Modified Julian Day	-6621.04166666977
Rata Die	671954.95833333

Serializations

Global date and time string (time zone offset preserved)	1840-09-30T22:59:59.999732018Z
Global date and time string (UTC)	1840-09-30T22:59:59.999732018Z
Normalized forced-UTC global date and time string	1840-09-30T22:59:59.999732018Z
HTTP date	`Wed, 30 Sep 1840 22:59:59 GMT`
RSS2 date-time	`Wed, 30 Sep 1840 22:59:59 +0000`
`document.lastModified` format	`09/30/1840 22:59:59`
Local date and time string	1840-09-30T22:59:59.999732018
Normalized local date and time string	1840-09-30T22:59:59.999732018
Date string	1840-09-30
Date string with optional time	1840-09-30T22:59:59.999732018Z
Year string	1840
Month string	1840-09
Yearless date string	--09-30
Week string	1840-W40
Time string	22:59:59.999732018
Shortest time string	22:59:59.999732018

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

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365 days	1839-10-01T22:59:59.999732018Z	1841-09-30T22:59:59.999732018Z
30 days	1840-08-31T22:59:59.999732018Z	1840-10-30T22:59:59.999732018Z
7 days	1840-09-23T22:59:59.999732018Z	1840-10-07T22:59:59.999732018Z
Day	1840-09-29T22:59:59.999732018Z	1840-10-01T22:59:59.999732018Z
Hour	1840-09-30T21:59:59.999732018Z	1840-09-30T23:59:59.999732018Z
Minute	1840-09-30T22:58:59.999732018Z	1840-09-30T23:00:59.999732018Z