"Sat, 24 Aug 2024 15:55:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240824
Only TIME
15:55:13
General datetime
2024-08-24 15:55:13Z
For Database
2024-08-24 15:55:13
For HTTP1.1
Sat, 24 Aug 2024 15:55:13 GMT