"Mon, 19 Jan 1970 12:03:15"

Convert date and time to unixtime.

1598595

Another datetime format string at UTC

YYYYMMDD
19700119

Only TIME
12:03:15

General datetime
1970-01-19 12:03:15Z

For Database
1970-01-19 12:03:15

For HTTP1.1
Mon, 19 Jan 1970 12:03:15 GMT

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