"Sat, 31 Aug 2024 15:38:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240831
Only TIME
15:38:20
General datetime
2024-08-31 15:38:20Z
For Database
2024-08-31 15:38:20
For HTTP1.1
Sat, 31 Aug 2024 15:38:20 GMT