"Sat, 13 Apr 2024 12:35:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240413
Only TIME
12:35:15
General datetime
2024-04-13 12:35:15Z
For Database
2024-04-13 12:35:15
For HTTP1.1
Sat, 13 Apr 2024 12:35:15 GMT