"Sat, 03 Jan 1970 12:52:39"

Convert date and time to unixtime.

219159

Another datetime format string at UTC

YYYYMMDD
19700103

Only TIME
12:52:39

General datetime
1970-01-03 12:52:39Z

For Database
1970-01-03 12:52:39

For HTTP1.1
Sat, 03 Jan 1970 12:52:39 GMT

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