This calendar shows all 12 months of 2027 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.

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January
WkMoTuWeThFrSaSu
5328293031123
145678910
211121314151617
318192021222324
425262728293031
February
WkMoTuWeThFrSaSu
51234567
6891011121314
715161718192021
822232425262728
March
WkMoTuWeThFrSaSu
91234567
10891011121314
1115161718192021
1222232425262728
132930311234
April
WkMoTuWeThFrSaSu
132930311234
14567891011
1512131415161718
1619202122232425
17262728293012
May
WkMoTuWeThFrSaSu
17262728293012
183456789
1910111213141516
2017181920212223
2124252627282930
2231123456
June
WkMoTuWeThFrSaSu
2231123456
2378910111213
2414151617181920
2521222324252627
262829301234
July
WkMoTuWeThFrSaSu
262829301234
27567891011
2812131415161718
2919202122232425
302627282930311
August
WkMoTuWeThFrSaSu
302627282930311
312345678
329101112131415
3316171819202122
3423242526272829
35303112345
September
WkMoTuWeThFrSaSu
35303112345
366789101112
3713141516171819
3820212223242526
3927282930123
October
WkMoTuWeThFrSaSu
3927282930123
4045678910
4111121314151617
4218192021222324
4325262728293031
November
WkMoTuWeThFrSaSu
441234567
45891011121314
4615161718192021
4722232425262728
48293012345
December
WkMoTuWeThFrSaSu
48293012345
496789101112
5013141516171819
5120212223242526
52272829303112

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Also see: Week numbers for 2027 | Day numbers for 2027