"Sat, 21 Sep 2024 13:38:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
13:38:04
General datetime
2024-09-21 13:38:04Z
For Database
2024-09-21 13:38:04
For HTTP1.1
Sat, 21 Sep 2024 13:38:04 GMT