"Tue, 06 Jan 1970 04:42:19"

Convert date and time to unixtime.

448939

Another datetime format string at UTC

YYYYMMDD
19700106

Only TIME
04:42:19

General datetime
1970-01-06 04:42:19Z

For Database
1970-01-06 04:42:19

For HTTP1.1
Tue, 06 Jan 1970 04:42:19 GMT

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