"Fri, 23 Jan 1970 01:00:40"

Convert date and time to unixtime.

1904440

Another datetime format string at UTC

YYYYMMDD
19700123

Only TIME
01:00:40

General datetime
1970-01-23 01:00:40Z

For Database
1970-01-23 01:00:40

For HTTP1.1
Fri, 23 Jan 1970 01:00:40 GMT

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