Date facts
Thursday, December 21, 1978
December 21, 1978 is day 355 of 365, in ISO week 51. There are 10 days left in 1978 after this date.
Weekday
Thursday
Calendar weekday
Day of year
355
of 365
ISO week
51
Week-year 1978
Days remaining
10
In 1978
Weeks start on Monday and use ISO week numbers. Thursday is week 51 of 1978.