"Sat, 15 Jun 2024 12:54:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
12:54:33
General datetime
2024-06-15 12:54:33Z
For Database
2024-06-15 12:54:33
For HTTP1.1
Sat, 15 Jun 2024 12:54:33 GMT