"Thu, 15 Aug 2024 13:56:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240815
Only TIME
13:56:21
General datetime
2024-08-15 13:56:21Z
For Database
2024-08-15 13:56:21
For HTTP1.1
Thu, 15 Aug 2024 13:56:21 GMT