"Sat, 31 Aug 2024 15:13:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240831
Only TIME
15:13:15
General datetime
2024-08-31 15:13:15Z
For Database
2024-08-31 15:13:15
For HTTP1.1
Sat, 31 Aug 2024 15:13:15 GMT