"Sun, 04 Jan 1970 00:19:56"

Convert date and time to unixtime.

260396

Another datetime format string at UTC

YYYYMMDD
19700104

Only TIME
00:19:56

General datetime
1970-01-04 00:19:56Z

For Database
1970-01-04 00:19:56

For HTTP1.1
Sun, 04 Jan 1970 00:19:56 GMT

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