"Sun, 18 Jan 1970 07:12:28"

Convert date and time to unixtime.

1494748

Another datetime format string at UTC

YYYYMMDD
19700118

Only TIME
07:12:28

General datetime
1970-01-18 07:12:28Z

For Database
1970-01-18 07:12:28

For HTTP1.1
Sun, 18 Jan 1970 07:12:28 GMT

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