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.
Gregorian Calendar
31 December, 1969 CE
| Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday |
|---|---|---|---|---|---|---|
|
1
152
|
2
153
|
3
154
|
4
155
|
5
156
|
6
157
|
|
|
7
158
|
8
159
|
9
160
|
10
161
|
11
162
|
12
163
|
13
164
|
|
14
165
|
15
166
|
16
167
|
17
168
|
18
169
|
19
170
|
20
171
|
|
21
172
|
22
173
Summer
|
23
174
|
24
175
|
25
176
|
26
177
|
27
178
|
|
28
179
|
29
180
|
30
181
|