"Thu, 29 Jan 1970 00:39:50"

Convert date and time to unixtime.

2421590

Another datetime format string at UTC

YYYYMMDD
19700129

Only TIME
00:39:50

General datetime
1970-01-29 00:39:50Z

For Database
1970-01-29 00:39:50

For HTTP1.1
Thu, 29 Jan 1970 00:39:50 GMT

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