"Wed, 18 Sep 2024 15:45:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240918
Only TIME
15:45:15
General datetime
2024-09-18 15:45:15Z
For Database
2024-09-18 15:45:15
For HTTP1.1
Wed, 18 Sep 2024 15:45:15 GMT