"Sat, 20 Apr 2024 20:14:53"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
20:14:53
General datetime
2024-04-20 20:14:53Z
For Database
2024-04-20 20:14:53
For HTTP1.1
Sat, 20 Apr 2024 20:14:53 GMT