"Fri, 09 Jan 1970 01:21:39"

Convert date and time to unixtime.

696099

Another datetime format string at UTC

YYYYMMDD
19700109

Only TIME
01:21:39

General datetime
1970-01-09 01:21:39Z

For Database
1970-01-09 01:21:39

For HTTP1.1
Fri, 09 Jan 1970 01:21:39 GMT

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