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40 week 1980
40 week
1980 year
Week 40 1980 starts on September 29, 1980 and ends on October 5, 1980.
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39 week
40 week
41 week
September
#
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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
#
Mon
Tue
Wed
Thu
Fri
Sat
Sun
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
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40 week