December 20, 1637

Dec. 1637

Sun

Mon

Tue

Wed

Thu

Fri

Sat

Sunday, December 20, 1637
Japanese calendar: Reiwa -381
Old calendar: November 5, 1637 先負 (Senbu)

72 pentads	鮭魚群Sake no uo muragaru (さけのうおむらがる)
Twenty-eight mansions	房bou (ぼう)
The 12 words used to mark the old calendar	執Toru (とる)

	Year sexagenary cycle	Month sexagenary cycle	Day sexagenary cycle
Koyomi-tsuki	Hinotono-ushi ひのとのうし丁丑	Mizunotono-ushi みずのとのうし癸丑	Tsuchinotono-mi つちのとのみ己巳
Fushi-tsuki	Hinotono-ushi ひのとのうし丁丑	Mizunoe-ne みずのえね壬子	Tsuchinotono-mi つちのとのみ己巳

Age of the moon	Moon
3.71

Today (September 10, 2025) is 141613.01318287 days after December 20, 1637. (First day as day 0)

From December 20, 1637 to YEAR MONTH DAY

The start date is not included included

From YEAR MONTH DAY to December 20, 1637

The start date is not included included

The day before, December 20, 1637	The next day, December 20, 1637
Date before one month(November 20, 1637)	Date after one month(January 20, 1638)
December 20 one year ago	December 20 after one year

Save results in a temporary

	Year sexagenary cycle	Month sexagenary cycle	Day sexagenary cycle
Koyomi-tsuki	Hinotono-ushi ひのとのうし丁丑	Mizunotono-ushi みずのとのうし癸丑	Tsuchinotono-mi つちのとのみ己巳
Fushi-tsuki	Hinotono-ushi ひのとのうし丁丑	Mizunoe-ne みずのえね壬子	Tsuchinotono-mi つちのとのみ己巳

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