"Wed, 21 Aug 2024 15:30:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
15:30:31
General datetime
2024-08-21 15:30:31Z
For Database
2024-08-21 15:30:31
For HTTP1.1
Wed, 21 Aug 2024 15:30:31 GMT