CalendarBest
en

1980 Quarterly Calendar

1980 split into four 3-month calendars. Q1 starts on Tuesday, January 1, 1980 and has 91 days; Q2 is the busiest quarter with 64 US working days, and Q4 the lightest with 62. Each quarter lists its dates, working days, ISO weeks and federal holidays.

Q1 1980January – March

91 days · 62 working days · W1–W14

January 198021 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 198020 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
March 198021 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 1980April – June

91 days · 64 working days · W14–W27

April 198022 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 198021 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 198021 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 1980July – September

92 days · 64 working days · W27–W40

July 198022 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 198021 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 198021 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 1980October – December

92 days · 62 working days · W40–W1 (1981)

October 198022 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 198018 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 198022 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

1980 Quarters at a Glance

QuarterDatesDaysWorking daysISO weeksFederal holidays
Q1Tue, Jan 1 – Mon, Mar 319162W1–W14New Year's Day, MLK Day, Presidents' Day
Q2Tue, Apr 1 – Mon, Jun 309164W14–W27Memorial Day
Q3Tue, Jul 1 – Tue, Sep 309264W27–W40Independence Day, Labor Day
Q4Wed, Oct 1 – Wed, Dec 319262W40–W1 (1981)Columbus Day, Veterans Day, Thanksgiving, Christmas Day

1980 Quarterly Calendar FAQ

When does each quarter of 1980 start and end?

Q1 runs from Tuesday, January 1, 1980 to Monday, March 31, 1980 (91 days); Q2 runs from Tuesday, April 1, 1980 to Monday, June 30, 1980 (91 days); Q3 runs from Tuesday, July 1, 1980 to Tuesday, September 30, 1980 (92 days); Q4 runs from Wednesday, October 1, 1980 to Wednesday, December 31, 1980 (92 days).

How many working days are in each quarter of 1980?

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

Which ISO weeks fall in each 1980 quarter?

Q1 runs from W1 to W14, Q2 runs from W14 to W27, Q3 runs from W27 to W40, Q4 runs from W40 to W1 (1981). 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 1980 (calendar Q4) is Q1 of federal fiscal year 1981.

Make Your Own 1980 Quarterly Planner

Open 1980 in the builder, add deadlines and events to each month, and export a PDF.

Customize the 1980 Calendar