"Sat, 15 Jun 2024 09:24:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
09:24:08
General datetime
2024-06-15 09:24:08Z
For Database
2024-06-15 09:24:08
For HTTP1.1
Sat, 15 Jun 2024 09:24:08 GMT