"Mon, 12 Jan 1970 09:18:23"

Convert date and time to unixtime.

983903

Another datetime format string at UTC

YYYYMMDD
19700112

Only TIME
09:18:23

General datetime
1970-01-12 09:18:23Z

For Database
1970-01-12 09:18:23

For HTTP1.1
Mon, 12 Jan 1970 09:18:23 GMT

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