"Sat, 15 Jun 2024 10:27:08"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
10:27:08
General datetime
2024-06-15 10:27:08Z
For Database
2024-06-15 10:27:08
For HTTP1.1
Sat, 15 Jun 2024 10:27:08 GMT