DateMath

2011 Calendar With Holidays and Week Numbers

2011 started on a Saturday and ended on a Saturday: a common year of 365 days, with the same calendar as 1910, 1921, 1927. Below is every month of 2011 with the US federal holidays marked and the US week number on each row; the calendar tool prints it with Monday starts and ISO weeks too.

2011 calendar by month

January 2011 calendar

January 2011
WkSuMoTuWeThFrSa
11 (New Year's Day)
22345678
39101112131415
41617 (Martin Luther King Jr. Day)1819202122
523242526272829
63031
  • 1 New Year's Day
  • 17 Martin Luther King Jr. Day

February 2011 calendar

February 2011
WkSuMoTuWeThFrSa
612345
76789101112
813141516171819
92021 (Washington's Birthday (Presidents' Day))2223242526
102728
  • 21 Washington's Birthday (Presidents' Day)

March 2011 calendar

March 2011
WkSuMoTuWeThFrSa
1012345
116789101112
1213141516171819
1320212223242526
142728293031

April 2011 calendar

April 2011
WkSuMoTuWeThFrSa
1412
153456789
1610111213141516
1717181920212223
1824252627282930

May 2011 calendar

May 2011
WkSuMoTuWeThFrSa
191234567
20891011121314
2115161718192021
2222232425262728
232930 (Memorial Day)31
  • 30 Memorial Day

June 2011 calendar

June 2011
WkSuMoTuWeThFrSa
231234
24567891011
2512131415161718
2619202122232425
272627282930

July 2011 calendar

July 2011
WkSuMoTuWeThFrSa
2712
2834 (Independence Day)56789
2910111213141516
3017181920212223
3124252627282930
3231
  • 4 Independence Day

August 2011 calendar

August 2011
WkSuMoTuWeThFrSa
32123456
3378910111213
3414151617181920
3521222324252627
3628293031

September 2011 calendar

September 2011
WkSuMoTuWeThFrSa
36123
3745 (Labor Day)678910
3811121314151617
3918192021222324
40252627282930
  • 5 Labor Day

October 2011 calendar

October 2011
WkSuMoTuWeThFrSa
401
412345678
42910 (Columbus Day)1112131415
4316171819202122
4423242526272829
453031
  • 10 Columbus Day

November 2011 calendar

November 2011
WkSuMoTuWeThFrSa
4512345
4667891011 (Veterans Day)12
4713141516171819
482021222324 (Thanksgiving Day)2526
4927282930
  • 11 Veterans Day
  • 24 Thanksgiving Day

December 2011 calendar

December 2011
WkSuMoTuWeThFrSa
49123
5045678910
5111121314151617
5218192021222324
5325 (Christmas Day)26 (Christmas Day (observed))2728293031
  • 25 Christmas Day
  • 26 Christmas Day (observed)

February 2011 calendar

February 2011 started on a Tuesday and had these federal holidays: Washington's Birthday (Presidents' Day) on Monday, February 21, 2011.

February 2011
WkSuMoTuWeThFrSa
612345
76789101112
813141516171819
92021 (Washington's Birthday (Presidents' Day))2223242526
102728
  • 21 Washington's Birthday (Presidents' Day)

US federal holidays in 2011

HolidayDateObserved
New Year's DaySaturday, January 1, 2011Friday, December 31, 2010
Martin Luther King Jr. DayMonday, January 17, 2011Same day
Washington's Birthday (Presidents' Day)Monday, February 21, 2011Same day
Memorial DayMonday, May 30, 2011Same day
Independence DayMonday, July 4, 2011Same day
Labor DayMonday, September 5, 2011Same day
Columbus DayMonday, October 10, 2011Same day
Veterans DayFriday, November 11, 2011Same day
Thanksgiving DayThursday, November 24, 2011Same day
Christmas DaySunday, December 25, 2011Monday, December 26, 2011

2011 in numbers

2011
First daySaturday, January 1, 2011
Last daySaturday, December 31, 2011
Days365
Leap yearNo (February has 28 days)
ISO weeks52, week 1 from January 3, 2011
Same calendar, 1901–20991910, 1921, 1927, 1938, 1949, 1955, 1966, 1977, 1983, 1994, 2005, 2022, 2033, 2039, 2050, 2061, 2067, 2078, 2089, 2095

DateMath draws every month from the weekday of its 1st and the length of the month in the Gregorian calendar, and marks the federal holidays the business days calculator skips.

Frequently asked questions

What day did 2011 start on?
2011 started on Saturday, January 1, 2011 and ended on Saturday, December 31, 2011. It was a common year of 365 days.
Which years have the same calendar as 2011?
1910, 1921, 1927, 1938, 1949, 1955, 1966, 1977, 1983, 1994, 2005, 2022, 2033, 2039, 2050, 2061, 2067, 2078, 2089, 2095: between 1901 and 2099 these years also start on a Saturday and are common years, so every date falls on the same weekday. Only the holidays that depend on the year, such as Juneteenth from 2021, differ.
How many weeks did 2011 have?
52 ISO weeks: ISO week 1 of 2011 started on Monday, January 3, 2011. In whole days, 2011 was 52 weeks and 1 day.
What day of the week did February 2011 start on?
On a Tuesday. The February 2011 calendar on this page shows the whole month with its holidays and week numbers.

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