"Tue, 20 Jan 1970 05:27:28"

Convert date and time to unixtime.

1661248

Another datetime format string at UTC

YYYYMMDD
19700120

Only TIME
05:27:28

General datetime
1970-01-20 05:27:28Z

For Database
1970-01-20 05:27:28

For HTTP1.1
Tue, 20 Jan 1970 05:27:28 GMT

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