"Mon, 12 Jan 1970 14:56:21"

Convert date and time to unixtime.

1004181

Another datetime format string at UTC

YYYYMMDD
19700112

Only TIME
14:56:21

General datetime
1970-01-12 14:56:21Z

For Database
1970-01-12 14:56:21

For HTTP1.1
Mon, 12 Jan 1970 14:56:21 GMT

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