"Thu, 08 Jan 1970 09:59:40"

Convert date and time to unixtime.

640780

Another datetime format string at UTC

YYYYMMDD
19700108

Only TIME
09:59:40

General datetime
1970-01-08 09:59:40Z

For Database
1970-01-08 09:59:40

For HTTP1.1
Thu, 08 Jan 1970 09:59:40 GMT

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