"Thu, 18 Apr 2024 20:00:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240418
Only TIME
20:00:03
General datetime
2024-04-18 20:00:03Z
For Database
2024-04-18 20:00:03
For HTTP1.1
Thu, 18 Apr 2024 20:00:03 GMT