Date facts
Monday, December 29, 1980
December 29, 1980 is day 364 of 366, in ISO week 1. There are 2 days left in 1980 after this date.
Weekday
Monday
Calendar weekday
Day of year
364
of 366
ISO week
1
Week-year 1981
Days remaining
2
In 1980
Weeks start on Monday and use ISO week numbers. Monday is the first week of 1981.