"Mon, 19 Jan 1970 21:42:57"

Convert date and time to unixtime.

1633377

Another datetime format string at UTC

YYYYMMDD
19700119

Only TIME
21:42:57

General datetime
1970-01-19 21:42:57Z

For Database
1970-01-19 21:42:57

For HTTP1.1
Mon, 19 Jan 1970 21:42:57 GMT

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