"Fri, 21 Jun 2024 08:55:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
08:55:01
General datetime
2024-06-21 08:55:01Z
For Database
2024-06-21 08:55:01
For HTTP1.1
Fri, 21 Jun 2024 08:55:01 GMT