"Sun, 11 Jan 1970 19:40:28"

Convert date and time to unixtime.

934828

Another datetime format string at UTC

YYYYMMDD
19700111

Only TIME
19:40:28

General datetime
1970-01-11 19:40:28Z

For Database
1970-01-11 19:40:28

For HTTP1.1
Sun, 11 Jan 1970 19:40:28 GMT

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