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 |
|---|---|---|---|---|---|---|
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1
1
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2
2
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3
3
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4
4
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5
5
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6
6
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7
7
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8
8
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9
9
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10
10
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11
11
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12
12
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13
13
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14
14
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15
15
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16
16
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17
17
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18
18
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19
19
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20
20
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21
21
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22
22
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23
23
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24
24
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25
25
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26
26
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27
27
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28
28
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29
29
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30
30
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31
31
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