"Mon, 12 Jan 1970 12:33:42"

Convert date and time to unixtime.

995622

Another datetime format string at UTC

YYYYMMDD
19700112

Only TIME
12:33:42

General datetime
1970-01-12 12:33:42Z

For Database
1970-01-12 12:33:42

For HTTP1.1
Mon, 12 Jan 1970 12:33:42 GMT

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