"Tue, 20 Jan 1970 01:01:13"

Convert date and time to unixtime.

1645273

Another datetime format string at UTC

YYYYMMDD
19700120

Only TIME
01:01:13

General datetime
1970-01-20 01:01:13Z

For Database
1970-01-20 01:01:13

For HTTP1.1
Tue, 20 Jan 1970 01:01:13 GMT

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