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World Timer

Calendar 2025

Weeks start on Monday and are numbered the ISO 8601 way.

2025

January
WkMoTuWeThFrSaSu
112345
26789101112
313141516171819
420212223242526
52728293031
February
WkMoTuWeThFrSaSu
512
63456789
710111213141516
817181920212223
92425262728
March
WkMoTuWeThFrSaSu
912
103456789
1110111213141516
1217181920212223
1324252627282930
1431
April
WkMoTuWeThFrSaSu
14123456
1578910111213
1614151617181920
1721222324252627
18282930
May
WkMoTuWeThFrSaSu
181234
19567891011
2012131415161718
2119202122232425
22262728293031
June
WkMoTuWeThFrSaSu
221
232345678
249101112131415
2516171819202122
2623242526272829
2730
July
WkMoTuWeThFrSaSu
27123456
2878910111213
2914151617181920
3021222324252627
3128293031
August
WkMoTuWeThFrSaSu
31123
3245678910
3311121314151617
3418192021222324
3525262728293031
September
WkMoTuWeThFrSaSu
361234567
37891011121314
3815161718192021
3922232425262728
402930
October
WkMoTuWeThFrSaSu
4012345
416789101112
4213141516171819
4320212223242526
442728293031
November
WkMoTuWeThFrSaSu
4412
453456789
4610111213141516
4717181920212223
4824252627282930
December
WkMoTuWeThFrSaSu
491234567
50891011121314
5115161718192021
5222232425262728
1293031

How week numbers work

Under the international standard ISO 8601, a week starts on Monday and week 1 is the week that contains the first Thursday of the year. This means 1 January can belong to the last week of the previous year, and a year has either 52 or 53 weeks.

2025 has 52 weeks and 365 days. It starts on a Wednesday and ends on a Wednesday.

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