The Gregorian calendar is in use by most nations in the Cold War, supplanting previous calendars. Each year has 12 months, each month has 7 days, each day has 24 hours. There is a leap day in February every four years. Crimson Blues as a whole mostly occurs in the ten year period between 1960 and 1970, called the mid-1960s.
| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|
|
1
60
|
2
61
|
3
62
|
4
63
|
5
64
|
6
65
|
|
|
7
66
|
8
67
|
9
68
|
10
69
|
11
70
|
12
71
|
13
72
|
|
14
73
|
15
74
|
16
75
|
17
76
|
18
77
|
19
78
|
20
79
|
|
21
80
Spring
|
22
81
|
23
82
|
24
83
|
25
84
|
26
85
|
27
86
|
|
28
87
|
29
88
|
30
89
|
31
90
|