"Fri, 20 Sep 2024 15:30:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240920
Only TIME
15:30:15
General datetime
2024-09-20 15:30:15Z
For Database
2024-09-20 15:30:15
For HTTP1.1
Fri, 20 Sep 2024 15:30:15 GMT