"Fri, 16 Jan 1970 05:31:30"

Convert date and time to unixtime.

1315890

Another datetime format string at UTC

YYYYMMDD
19700116

Only TIME
05:31:30

General datetime
1970-01-16 05:31:30Z

For Database
1970-01-16 05:31:30

For HTTP1.1
Fri, 16 Jan 1970 05:31:30 GMT

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