"Sat, 21 Sep 2024 14:42:28"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
14:42:28
General datetime
2024-09-21 14:42:28Z
For Database
2024-09-21 14:42:28
For HTTP1.1
Sat, 21 Sep 2024 14:42:28 GMT