October 20, 1637

Oct. 1637

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Tuesday, October 20, 1637
Japanese calendar: Reiwa -381
Old calendar: September 3, 1637 大安 (Taian)

72 pentads	蟋蟀在戸Kirigirisu to ni ari (きりぎりすとにあり)
Twenty-eight mansions	翼yoku (よく)
The 12 words used to mark the old calendar	破Yaburu (やぶる)

	Year sexagenary cycle	Month sexagenary cycle	Day sexagenary cycle
Koyomi-tsuki	Hinotono-ushi ひのとのうし丁丑	Kanotono-i かのとのい辛亥	Tsuchinoe-tatsu つちのえたつ戊辰
Fushi-tsuki	Hinotono-ushi ひのとのうし丁丑	Kanoe-inu かのえいぬ庚戌	Tsuchinoe-tatsu つちのえたつ戊辰

Age of the moon	Moon
2.12

Today (September 11, 2025) is 141675.01318287 days after October 20, 1637. (First day as day 0)

From October 20, 1637 to YEAR MONTH DAY

The start date is not included included

From YEAR MONTH DAY to October 20, 1637

The start date is not included included

The day before, October 20, 1637	The next day, October 20, 1637
Date before one month(September 20, 1637)	Date after one month(November 20, 1637)
October 20 one year ago	October 20 after one year

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	Year sexagenary cycle	Month sexagenary cycle	Day sexagenary cycle
Koyomi-tsuki	Hinotono-ushi ひのとのうし丁丑	Kanotono-i かのとのい辛亥	Tsuchinoe-tatsu つちのえたつ戊辰
Fushi-tsuki	Hinotono-ushi ひのとのうし丁丑	Kanoe-inu かのえいぬ庚戌	Tsuchinoe-tatsu つちのえたつ戊辰

October 20, 1637 Japanese calendar, old calendar, six basic labels, moon age, etc.