Date facts
Thursday, December 4, 1980
December 4, 1980 is day 339 of 366, in ISO week 49. There are 27 days left in 1980 after this date.
Weekday
Thursday
Calendar weekday
Day of year
339
of 366
ISO week
49
Week-year 1980
Days remaining
27
In 1980
Weeks start on Monday and use ISO week numbers. Thursday is week 49 of 1980.