"Wed, 07 Jan 1970 11:45:20"

Convert date and time to unixtime.

560720

Another datetime format string at UTC

YYYYMMDD
19700107

Only TIME
11:45:20

General datetime
1970-01-07 11:45:20Z

For Database
1970-01-07 11:45:20

For HTTP1.1
Wed, 07 Jan 1970 11:45:20 GMT

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