"Sat, 13 Apr 2024 20:14:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240413
Only TIME
20:14:35
General datetime
2024-04-13 20:14:35Z
For Database
2024-04-13 20:14:35
For HTTP1.1
Sat, 13 Apr 2024 20:14:35 GMT