"Tue, 20 Aug 2024 15:38:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240820
Only TIME
15:38:18
General datetime
2024-08-20 15:38:18Z
For Database
2024-08-20 15:38:18
For HTTP1.1
Tue, 20 Aug 2024 15:38:18 GMT