"Mon, 05 Jan 1970 15:06:48"

Convert date and time to unixtime.

400008

Another datetime format string at UTC

YYYYMMDD
19700105

Only TIME
15:06:48

General datetime
1970-01-05 15:06:48Z

For Database
1970-01-05 15:06:48

For HTTP1.1
Mon, 05 Jan 1970 15:06:48 GMT

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