Week 1
Monday, December 31, 1979 – Sunday, January 6, 1980
Holidays
Tue, Jan 1:
New Year’s Day
Calendar with all holidays in 1980
Enter a week number or a date
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e.g.
6
,
29 2025
,
22 March
, or
memorial day 2025
.
1980 calendar
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Calendar with week numbers and holidays
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