"Sat, 03 Aug 2024 18:54:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240803
Only TIME
18:54:54
General datetime
2024-08-03 18:54:54Z
For Database
2024-08-03 18:54:54
For HTTP1.1
Sat, 03 Aug 2024 18:54:54 GMT