"Sat, 15 Jun 2024 09:00:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
09:00:56
General datetime
2024-06-15 09:00:56Z
For Database
2024-06-15 09:00:56
For HTTP1.1
Sat, 15 Jun 2024 09:00:56 GMT