"Mon, 16 Feb 1970 14:45:59"

Convert date and time to unixtime.

4027559

Another datetime format string at UTC

YYYYMMDD
19700216

Only TIME
14:45:59

General datetime
1970-02-16 14:45:59Z

For Database
1970-02-16 14:45:59

For HTTP1.1
Mon, 16 Feb 1970 14:45:59 GMT

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