"Tue, 20 Jan 1970 21:42:58"

Convert date and time to unixtime.

1719778

Another datetime format string at UTC

YYYYMMDD
19700120

Only TIME
21:42:58

General datetime
1970-01-20 21:42:58Z

For Database
1970-01-20 21:42:58

For HTTP1.1
Tue, 20 Jan 1970 21:42:58 GMT


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