"Sat, 15 Jun 2024 23:08:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
23:08:06
General datetime
2024-06-15 23:08:06Z
For Database
2024-06-15 23:08:06
For HTTP1.1
Sat, 15 Jun 2024 23:08:06 GMT