"Sat, 15 Jun 2024 08:37:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
08:37:25
General datetime
2024-06-15 08:37:25Z
For Database
2024-06-15 08:37:25
For HTTP1.1
Sat, 15 Jun 2024 08:37:25 GMT