"Sat, 21 Sep 2024 18:52:34"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
18:52:34
General datetime
2024-09-21 18:52:34Z
For Database
2024-09-21 18:52:34
For HTTP1.1
Sat, 21 Sep 2024 18:52:34 GMT