"Tue, 13 Jan 1970 15:13:09"

Convert date and time to unixtime.

1091589

Another datetime format string at UTC

YYYYMMDD
19700113

Only TIME
15:13:09

General datetime
1970-01-13 15:13:09Z

For Database
1970-01-13 15:13:09

For HTTP1.1
Tue, 13 Jan 1970 15:13:09 GMT

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