"Tue, 20 Jan 1970 04:42:44"

Convert date and time to unixtime.

1658564

Another datetime format string at UTC

YYYYMMDD
19700120

Only TIME
04:42:44

General datetime
1970-01-20 04:42:44Z

For Database
1970-01-20 04:42:44

For HTTP1.1
Tue, 20 Jan 1970 04:42:44 GMT

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