"Sat, 20 Apr 2024 12:33:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
12:33:56
General datetime
2024-04-20 12:33:56Z
For Database
2024-04-20 12:33:56
For HTTP1.1
Sat, 20 Apr 2024 12:33:56 GMT