"Tue, 13 Jan 1970 00:18:42"

Convert date and time to unixtime.

1037922

Another datetime format string at UTC

YYYYMMDD
19700113

Only TIME
00:18:42

General datetime
1970-01-13 00:18:42Z

For Database
1970-01-13 00:18:42

For HTTP1.1
Tue, 13 Jan 1970 00:18:42 GMT

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