Date facts
Saturday, December 20, 1980
December 20, 1980 is day 355 of 366, in ISO week 51. There are 11 days left in 1980 after this date.
Weekday
Saturday
Calendar weekday
Day of year
355
of 366
ISO week
51
Week-year 1980
Days remaining
11
In 1980
Weeks start on Monday and use ISO week numbers. Saturday is week 51 of 1980.