"Thu, 08 Jan 1970 11:20:21"

Convert date and time to unixtime.

645621

Another datetime format string at UTC

YYYYMMDD
19700108

Only TIME
11:20:21

General datetime
1970-01-08 11:20:21Z

For Database
1970-01-08 11:20:21

For HTTP1.1
Thu, 08 Jan 1970 11:20:21 GMT


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