"Sat, 21 Sep 2024 01:23:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
01:23:15
General datetime
2024-09-21 01:23:15Z
For Database
2024-09-21 01:23:15
For HTTP1.1
Sat, 21 Sep 2024 01:23:15 GMT