"Sat, 21 Sep 2024 16:42:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
16:42:06
General datetime
2024-09-21 16:42:06Z
For Database
2024-09-21 16:42:06
For HTTP1.1
Sat, 21 Sep 2024 16:42:06 GMT