"Fri, 21 Jun 2024 20:20:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
20:20:31
General datetime
2024-06-21 20:20:31Z
For Database
2024-06-21 20:20:31
For HTTP1.1
Fri, 21 Jun 2024 20:20:31 GMT