"Sat, 21 Sep 2024 00:18:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
00:18:33
General datetime
2024-09-21 00:18:33Z
For Database
2024-09-21 00:18:33
For HTTP1.1
Sat, 21 Sep 2024 00:18:33 GMT