"Tue, 20 Aug 2024 15:30:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240820
Only TIME
15:30:40
General datetime
2024-08-20 15:30:40Z
For Database
2024-08-20 15:30:40
For HTTP1.1
Tue, 20 Aug 2024 15:30:40 GMT