"Wed, 21 Jan 1970 05:33:20"

Convert date and time to unixtime.

1748000

Another datetime format string at UTC

YYYYMMDD
19700121

Only TIME
05:33:20

General datetime
1970-01-21 05:33:20Z

For Database
1970-01-21 05:33:20

For HTTP1.1
Wed, 21 Jan 1970 05:33:20 GMT

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