CalendarBest
en

2011 Quarterly Calendar

2011 split into four 3-month calendars. Q1 starts on Saturday, January 1, 2011 and has 90 days; Q2 is the busiest quarter with 64 US working days, and Q4 the lightest with 61. Each quarter lists its dates, working days, ISO weeks and federal holidays.

Q1 2011January – March

90 days · 62 working days · W52 (2010)–W13

January 201120 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
February 201119 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
March 201123 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Q2 2011April – June

91 days · 64 working days · W13–W26

April 201121 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
May 201121 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
June 201122 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

Q3 2011July – September

92 days · 64 working days · W26–W39

July 201120 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
August 201123 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
September 201121 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

Q4 2011October – December

92 days · 61 working days · W39–W52

October 201120 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
November 201120 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
December 201121 work days
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

2011 Quarters at a Glance

QuarterDatesDaysWorking daysISO weeksFederal holidays
Q1Sat, Jan 1 – Thu, Mar 319062W52 (2010)–W13New Year's Day, MLK Day, Presidents' Day
Q2Fri, Apr 1 – Thu, Jun 309164W13–W26Memorial Day
Q3Fri, Jul 1 – Fri, Sep 309264W26–W39Independence Day, Labor Day
Q4Sat, Oct 1 – Sat, Dec 319261W39–W52Columbus Day, Veterans Day, Thanksgiving, Christmas Day

2011 Quarterly Calendar FAQ

When does each quarter of 2011 start and end?

Q1 runs from Saturday, January 1, 2011 to Thursday, March 31, 2011 (90 days); Q2 runs from Friday, April 1, 2011 to Thursday, June 30, 2011 (91 days); Q3 runs from Friday, July 1, 2011 to Friday, September 30, 2011 (92 days); Q4 runs from Saturday, October 1, 2011 to Saturday, December 31, 2011 (92 days).

How many working days are in each quarter of 2011?

Q1 has 62, Q2 has 64, Q3 has 64, Q4 has 61 US working days (Monday to Friday minus federal days off). Q2 has the most and Q4 the fewest.

Which ISO weeks fall in each 2011 quarter?

Q1 runs from W52 (2010) to W13, Q2 runs from W13 to W26, Q3 runs from W26 to W39, Q4 runs from W39 to W52. Weeks that start in one quarter and end in the next appear in both.

Are these calendar quarters or fiscal quarters?

They are calendar quarters. The US federal fiscal year starts on October 1, so October to December 2011 (calendar Q4) is Q1 of federal fiscal year 2012.

Make Your Own 2011 Quarterly Planner

Open 2011 in the builder, add deadlines and events to each month, and export a PDF.

Customize the 2011 Calendar