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2027 Calendar

2027 has 365 days, 261 of them working days once Saturdays and Sundays are removed. Week numbers follow ISO 8601, which gives a week to the year that owns its Thursday — that is why 1 January can fall in week 53 of the year before. Marked days: New Year's Day, Martin Luther King Jr. Day, Valentine's Day, Presidents' Day, St Patrick's Day, Easter Sunday. The ones that move are placed by a rule, printed beside each date.

Holiday rules and week numbering checked · How we check

2027 has 365 days, 261 of them working days, across 52 ISO weeks. The number down the left of each month is the ISO week.

January31 days, 21 working
wkSuMoTuWeThFrSa
53272829303112
13456789
210111213141516
317181920212223
424252627282930
531123456
February28 days, 20 working
wkSuMoTuWeThFrSa
531123456
678910111213
714151617181920
821222324252627
928123456
March31 days, 23 working
wkSuMoTuWeThFrSa
928123456
1078910111213
1114151617181920
1221222324252627
1328293031123
April30 days, 22 working
wkSuMoTuWeThFrSa
1328293031123
1445678910
1511121314151617
1618192021222324
172526272829301
May31 days, 21 working
wkSuMoTuWeThFrSa
172526272829301
182345678
199101112131415
2016171819202122
2123242526272829
22303112345
June30 days, 22 working
wkSuMoTuWeThFrSa
22303112345
236789101112
2413141516171819
2520212223242526
2627282930123
July31 days, 22 working
wkSuMoTuWeThFrSa
2627282930123
2745678910
2811121314151617
2918192021222324
3025262728293031
August31 days, 22 working
wkSuMoTuWeThFrSa
311234567
32891011121314
3315161718192021
3422232425262728
352930311234
September30 days, 22 working
wkSuMoTuWeThFrSa
352930311234
36567891011
3712131415161718
3819202122232425
39262728293012
October31 days, 21 working
wkSuMoTuWeThFrSa
39262728293012
403456789
4110111213141516
4217181920212223
4324252627282930
4431123456
November30 days, 22 working
wkSuMoTuWeThFrSa
4431123456
4578910111213
4614151617181920
4721222324252627
482829301234
December31 days, 23 working
wkSuMoTuWeThFrSa
482829301234
49567891011
5012131415161718
5119202122232425
522627282930311

Marked days in 2027

Underlined in the grid above. Each one links to the count of days until it and the rule that places it, because half of these are not on a fixed date at all.

New Year's Day Fri, January 1, 2027

Martin Luther King Jr. Day Mon, January 18, 2027

Valentine's Day Sun, February 14, 2027

Presidents' Day Mon, February 15, 2027

St Patrick's Day Wed, March 17, 2027

Easter Sunday Sun, March 28, 2027

Tax Day Thu, April 15, 2027

Mother's Day Sun, May 9, 2027

Memorial Day Mon, May 31, 2027

Father's Day Sun, June 20, 2027

Independence Day Sun, July 4, 2027

Labor Day Mon, September 6, 2027

Halloween Sun, October 31, 2027

Thanksgiving Thu, November 25, 2027

Black Friday Fri, November 26, 2027

Christmas Day Sat, December 25, 2027

New Year's Eve Fri, December 31, 2027

Which day does the week start on?

US calendars start the week on Sunday and ISO 8601 weeks run Monday to Sunday, so a grid cannot honour both without saying which it is doing. This one is laid out Sunday first, as US calendars are, and the number down the left is always the ISO week. That means the Sunday at the start of a row belongs to the number on the row above it — the row is numbered by its Monday.

Show it Monday first

What do the week numbers mean?

These are ISO 8601 weeks: every week runs Monday to Sunday and belongs to the year that owns its Thursday. It is why 1 January 2027 falls in week 53 of 2026, and why a year has 53 weeks whenever it starts on a Thursday or is a leap year starting on a Wednesday. The US business convention of numbering from 1 January gives different answers, and payroll systems disagree about which one they mean.

2027 month by month

Other years

Sources