"Thu, 15 Aug 2024 09:45:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240815
Only TIME
09:45:21
General datetime
2024-08-15 09:45:21Z
For Database
2024-08-15 09:45:21
For HTTP1.1
Thu, 15 Aug 2024 09:45:21 GMT