"Sat, 14 Sep 2024 15:23:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240914
Only TIME
15:23:09
General datetime
2024-09-14 15:23:09Z
For Database
2024-09-14 15:23:09
For HTTP1.1
Sat, 14 Sep 2024 15:23:09 GMT