1991 starts on a Tuesday and ends on a Tuesday. It has 365 days and is not a leap year, with 10 US federal holidays.
Federal holiday Observance Today
1991 calendar
January
January 1991
S
M
T
W
T
F
S
1
1
2
3
4
5
2
6
7
8
9
10
11
12
3
13
14
15
16
17
18
19
4
20
21
22
23
24
25
26
5
27
28
29
30
31
February
February 1991
S
M
T
W
T
F
S
5
1
2
6
3
4
5
6
7
8
9
7
10
11
12
13
14
15
16
8
17
18
19
20
21
22
23
9
24
25
26
27
28
March
March 1991
S
M
T
W
T
F
S
9
1
2
10
3
4
5
6
7
8
9
11
10
11
12
13
14
15
16
12
17
18
19
20
21
22
23
13
24
25
26
27
28
29
30
14
31
April
April 1991
S
M
T
W
T
F
S
14
1
2
3
4
5
6
15
7
8
9
10
11
12
13
16
14
15
16
17
18
19
20
17
21
22
23
24
25
26
27
18
28
29
30
May
May 1991
S
M
T
W
T
F
S
18
1
2
3
4
19
5
6
7
8
9
10
11
20
12
13
14
15
16
17
18
21
19
20
21
22
23
24
25
22
26
27
28
29
30
31
June
June 1991
S
M
T
W
T
F
S
22
1
23
2
3
4
5
6
7
8
24
9
10
11
12
13
14
15
25
16
17
18
19
20
21
22
26
23
24
25
26
27
28
29
27
30
July
July 1991
S
M
T
W
T
F
S
27
1
2
3
4
5
6
28
7
8
9
10
11
12
13
29
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
31
28
29
30
31
August
August 1991
S
M
T
W
T
F
S
31
1
2
3
32
4
5
6
7
8
9
10
33
11
12
13
14
15
16
17
34
18
19
20
21
22
23
24
35
25
26
27
28
29
30
31
September
September 1991
S
M
T
W
T
F
S
36
1
2
3
4
5
6
7
37
8
9
10
11
12
13
14
38
15
16
17
18
19
20
21
39
22
23
24
25
26
27
28
40
29
30
October
October 1991
S
M
T
W
T
F
S
40
1
2
3
4
5
41
6
7
8
9
10
11
12
42
13
14
15
16
17
18
19
43
20
21
22
23
24
25
26
44
27
28
29
30
31
November
November 1991
S
M
T
W
T
F
S
44
1
2
45
3
4
5
6
7
8
9
46
10
11
12
13
14
15
16
47
17
18
19
20
21
22
23
48
24
25
26
27
28
29
30
December
December 1991
S
M
T
W
T
F
S
49
1
2
3
4
5
6
7
50
8
9
10
11
12
13
14
51
15
16
17
18
19
20
21
52
22
23
24
25
26
27
28
1
29
30
31
US federal holidays 1991
Date
Holiday
Day off
Tuesday, January 1
New Year's Day
-
Monday, January 21
Martin Luther King Jr. Day
-
Monday, February 18
Washington's Birthday (Presidents' Day)
-
Monday, May 27
Memorial Day
-
Thursday, July 4
Independence Day
-
Monday, September 2
Labor Day
-
Monday, October 14
Columbus Day (Indigenous Peoples' Day)
-
Monday, November 11
Veterans Day
-
Thursday, November 28
Thanksgiving Day
-
Wednesday, December 25
Christmas Day
-
1991 at a glance
First day
Tuesday, January 1
Last day
Tuesday, December 31
Days
365
Leap year
No
ISO weeks
52
Easter Sunday
March 31
The 1991 calendar is the same as the calendar for 1935, 1946, 1957, 1963, 1974, 1985, 2002, 2013, 2019, 2030, 2041, 2047: every date falls on the same day of the week, so a calendar from one of those years can be used for 1991.
Between 1931 and 2051: 1935, 1946, 1957, 1963, 1974, 1985, 2002, 2013, 2019, 2030, 2041, 2047. They start on the same day of the week and are also common (non-leap) years.