"Sat, 21 Sep 2024 12:18:27"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
12:18:27
General datetime
2024-09-21 12:18:27Z
For Database
2024-09-21 12:18:27
For HTTP1.1
Sat, 21 Sep 2024 12:18:27 GMT