"Sat, 17 Aug 2024 13:14:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240817
Only TIME
13:14:21
General datetime
2024-08-17 13:14:21Z
For Database
2024-08-17 13:14:21
For HTTP1.1
Sat, 17 Aug 2024 13:14:21 GMT