"Sat, 20 Apr 2024 08:37:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
08:37:10
General datetime
2024-04-20 08:37:10Z
For Database
2024-04-20 08:37:10
For HTTP1.1
Sat, 20 Apr 2024 08:37:10 GMT