"Tue, 27 Jan 1970 00:19:15"

Convert date and time to unixtime.

2247555

Another datetime format string at UTC

YYYYMMDD
19700127

Only TIME
00:19:15

General datetime
1970-01-27 00:19:15Z

For Database
1970-01-27 00:19:15

For HTTP1.1
Tue, 27 Jan 1970 00:19:15 GMT

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