"Sat, 31 Aug 2024 15:40:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240831
Only TIME
15:40:00
General datetime
2024-08-31 15:40:00Z
For Database
2024-08-31 15:40:00
For HTTP1.1
Sat, 31 Aug 2024 15:40:00 GMT