"Sat, 06 Apr 2024 20:14:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240406
Only TIME
20:14:40
General datetime
2024-04-06 20:14:40Z
For Database
2024-04-06 20:14:40
For HTTP1.1
Sat, 06 Apr 2024 20:14:40 GMT