This calendar shows all 12 months of 1980 with ISO 8601 week numbers (weeks start on Monday).

Hover over any date to see its Unix timestamps — the start and end of that day in UTC (or local time). Click a date to pin the popup and copy individual timestamps to the clipboard. Use the toggles to switch between seconds and milliseconds.

« 1979 calendar | 1981 calendar »

January
WkMoTuWeThFrSaSu
131123456
278910111213
314151617181920
421222324252627
528293031123
February
WkMoTuWeThFrSaSu
528293031123
645678910
711121314151617
818192021222324
9252627282912
March
WkMoTuWeThFrSaSu
9252627282912
103456789
1110111213141516
1217181920212223
1324252627282930
1431123456
April
WkMoTuWeThFrSaSu
1431123456
1578910111213
1614151617181920
1721222324252627
182829301234
May
WkMoTuWeThFrSaSu
182829301234
19567891011
2012131415161718
2119202122232425
222627282930311
June
WkMoTuWeThFrSaSu
222627282930311
232345678
249101112131415
2516171819202122
2623242526272829
2730123456
July
WkMoTuWeThFrSaSu
2730123456
2878910111213
2914151617181920
3021222324252627
3128293031123
August
WkMoTuWeThFrSaSu
3128293031123
3245678910
3311121314151617
3418192021222324
3525262728293031
September
WkMoTuWeThFrSaSu
361234567
37891011121314
3815161718192021
3922232425262728
40293012345
October
WkMoTuWeThFrSaSu
40293012345
416789101112
4213141516171819
4320212223242526
44272829303112
November
WkMoTuWeThFrSaSu
44272829303112
453456789
4610111213141516
4717181920212223
4824252627282930
December
WkMoTuWeThFrSaSu
491234567
50891011121314
5115161718192021
5222232425262728
12930311234

« 1979 calendar | 1981 calendar »

Other years:
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Also see: Week numbers for 1980 | Day numbers for 1980