"Fri, 21 Jun 2024 09:23:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
09:23:44
General datetime
2024-06-21 09:23:44Z
For Database
2024-06-21 09:23:44
For HTTP1.1
Fri, 21 Jun 2024 09:23:44 GMT