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Calendar

2020 calendar

All twelve months of 2020, with ISO week numbers. Weeks start on Monday; switch to Sunday if you prefer.

Weeks start on
January — January, with ISO week numbers
WkMonTueWedThuFriSatSun
112345
26789101112
313141516171819
420212223242526
52728293031
February — February, with ISO week numbers
WkMonTueWedThuFriSatSun
512
63456789
710111213141516
817181920212223
9242526272829
March — March, with ISO week numbers
WkMonTueWedThuFriSatSun
91
102345678
119101112131415
1216171819202122
1323242526272829
143031
April — April, with ISO week numbers
WkMonTueWedThuFriSatSun
1412345
156789101112
1613141516171819
1720212223242526
1827282930
May — May, with ISO week numbers
WkMonTueWedThuFriSatSun
18123
1945678910
2011121314151617
2118192021222324
2225262728293031
June — June, with ISO week numbers
WkMonTueWedThuFriSatSun
231234567
24891011121314
2515161718192021
2622232425262728
272930
July — July, with ISO week numbers
WkMonTueWedThuFriSatSun
2712345
286789101112
2913141516171819
3020212223242526
312728293031
August — August, with ISO week numbers
WkMonTueWedThuFriSatSun
3112
323456789
3310111213141516
3417181920212223
3524252627282930
3631
September — September, with ISO week numbers
WkMonTueWedThuFriSatSun
36123456
3778910111213
3814151617181920
3921222324252627
40282930
October — October, with ISO week numbers
WkMonTueWedThuFriSatSun
401234
41567891011
4212131415161718
4319202122232425
44262728293031
November — November, with ISO week numbers
WkMonTueWedThuFriSatSun
441
452345678
469101112131415
4716171819202122
4823242526272829
4930
December — December, with ISO week numbers
WkMonTueWedThuFriSatSun
49123456
5078910111213
5114151617181920
5221222324252627
5328293031

Calendar

2020 at a glance

01Days

366

02ISO weeks

53

2020 has 53 ISO weeks; week 1 starts on Monday, 30 December 2019.

03Starts on

Wednesday, 1 January 2020

04Ends on

Thursday, 31 December 2020

05Is 2020 a leap year?

2020 is a leap year: 366 days, with 29 February.

Clock changes

Clock changes in 2020

01European Union and the UK (shown in Paris time)

Sunday, 29 March 2020 at 02:00: clocks go forward 1 hour to 03:00 (CET → CEST).

Sunday, 25 October 2020 at 03:00: clocks go back 1 hour to 02:00 (CEST → CET).

The EU and the UK change at 01:00 UTC on the last Sunday of March and of October, at the same moment in every country.

02United States and most of Canada (shown in New York time)

Sunday, 8 March 2020 at 02:00: clocks go forward 1 hour to 03:00 (EST → EDT).

Sunday, 1 November 2020 at 02:00: clocks go back 1 hour to 01:00 (EDT → EST).

03Your time zone

How it works

ISO week numbers

ISO 8601 weeks start on Monday, and week 1 is the week that contains the year’s first Thursday (equivalently, 4 January). A year therefore has 52 or 53 weeks, and the first days of January can belong to the last week of the previous year.

The Gregorian leap-year rule: a year divisible by 4 is a leap year, except years divisible by 100, unless they are also divisible by 400. So 2000 was a leap year and 2100 will not be.

Other years

Questions

Good to know

How many weeks are there in 2020?

2020 has 53 ISO weeks; week 1 starts on Monday, 30 December 2019.

Is 2020 a leap year?

2020 is a leap year: 366 days, with 29 February.

When do the clocks change in 2020?

In the EU and the UK: Sunday, 29 March 2020 at 02:00: clocks go forward 1 hour to 03:00 (CET → CEST); Sunday, 25 October 2020 at 03:00: clocks go back 1 hour to 02:00 (CEST → CET). In the US: Sunday, 8 March 2020 at 02:00: clocks go forward 1 hour to 03:00 (EST → EDT); Sunday, 1 November 2020 at 02:00: clocks go back 1 hour to 01:00 (EDT → EST).