"Wed, 21 Jan 1970 18:03:31"

Convert date and time to unixtime.

1793011

Another datetime format string at UTC

YYYYMMDD
19700121

Only TIME
18:03:31

General datetime
1970-01-21 18:03:31Z

For Database
1970-01-21 18:03:31

For HTTP1.1
Wed, 21 Jan 1970 18:03:31 GMT


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