"Sat, 15 Jun 2024 07:35:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
07:35:56
General datetime
2024-06-15 07:35:56Z
For Database
2024-06-15 07:35:56
For HTTP1.1
Sat, 15 Jun 2024 07:35:56 GMT