"Sun, 11 Jan 1970 04:34:51"

Convert date and time to unixtime.

880491

Another datetime format string at UTC

YYYYMMDD
19700111

Only TIME
04:34:51

General datetime
1970-01-11 04:34:51Z

For Database
1970-01-11 04:34:51

For HTTP1.1
Sun, 11 Jan 1970 04:34:51 GMT

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