"Mon, 05 Jan 1970 12:34:40"

Convert date and time to unixtime.

390880

Another datetime format string at UTC

YYYYMMDD
19700105

Only TIME
12:34:40

General datetime
1970-01-05 12:34:40Z

For Database
1970-01-05 12:34:40

For HTTP1.1
Mon, 05 Jan 1970 12:34:40 GMT

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