"Fri, 20 Sep 2024 03:40:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240920
Only TIME
03:40:21
General datetime
2024-09-20 03:40:21Z
For Database
2024-09-20 03:40:21
For HTTP1.1
Fri, 20 Sep 2024 03:40:21 GMT