"Mon, 12 Jan 1970 11:05:49"

Convert date and time to unixtime.

990349

Another datetime format string at UTC

YYYYMMDD
19700112

Only TIME
11:05:49

General datetime
1970-01-12 11:05:49Z

For Database
1970-01-12 11:05:49

For HTTP1.1
Mon, 12 Jan 1970 11:05:49 GMT

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