"Sat, 15 Jun 2024 17:02:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
17:02:42
General datetime
2024-06-15 17:02:42Z
For Database
2024-06-15 17:02:42
For HTTP1.1
Sat, 15 Jun 2024 17:02:42 GMT