January 20, 1640

Jan. 1640

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Friday, January 20, 1640
Japanese calendar: Reiwa -378
Old calendar: December 28, 1639 先負 (Senbu)

The 24 divisions of the solar year	大寒 (Daikan)
72 pentads	欸冬華Fuki no hana saku (ふきのはなさく)
Twenty-eight mansions	牛gyuu (ぎゅう)
The 12 words used to mark the old calendar	納Osan (おさん)

	Year sexagenary cycle	Month sexagenary cycle	Day sexagenary cycle
Koyomi-tsuki	Kanoe-tatsu かのえたつ庚辰	Tsuchinoe-tora つちのえとら戊寅	Kanoe-inu かのえいぬ庚戌
Fushi-tsuki	Tsuchinotono-u つちのとのう己卯	Hinotono-ushi ひのとのうし丁丑	Kanoe-inu かのえいぬ庚戌

Age of the moon	Moon
26.64

Today (September 1, 2025) is 140843.01318287 days after January 20, 1640. (First day as day 0)

From January 20, 1640 to YEAR MONTH DAY

The start date is not included included

From YEAR MONTH DAY to January 20, 1640

The start date is not included included

The day before, January 20, 1640	The next day, January 20, 1640
Date before one month(December 20, 1639)	Date after one month(February 20, 1640)
January 20 one year ago	January 20 after one year

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	Year sexagenary cycle	Month sexagenary cycle	Day sexagenary cycle
Koyomi-tsuki	Kanoe-tatsu かのえたつ庚辰	Tsuchinoe-tora つちのえとら戊寅	Kanoe-inu かのえいぬ庚戌
Fushi-tsuki	Tsuchinotono-u つちのとのう己卯	Hinotono-ushi ひのとのうし丁丑	Kanoe-inu かのえいぬ庚戌

January 20, 1640 Japanese calendar, old calendar, six basic labels, moon age, etc.