"Sat, 20 Apr 2024 20:00:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
20:00:35
General datetime
2024-04-20 20:00:35Z
For Database
2024-04-20 20:00:35
For HTTP1.1
Sat, 20 Apr 2024 20:00:35 GMT