"Sat, 03 Jan 1970 07:12:38"

Convert date and time to unixtime.

198758

Another datetime format string at UTC

YYYYMMDD
19700103

Only TIME
07:12:38

General datetime
1970-01-03 07:12:38Z

For Database
1970-01-03 07:12:38

For HTTP1.1
Sat, 03 Jan 1970 07:12:38 GMT

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