"Wed, 28 Jan 1970 18:14:56"

Convert date and time to unixtime.

2398496

Another datetime format string at UTC

YYYYMMDD
19700128

Only TIME
18:14:56

General datetime
1970-01-28 18:14:56Z

For Database
1970-01-28 18:14:56

For HTTP1.1
Wed, 28 Jan 1970 18:14:56 GMT

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