"Sat, 15 Jun 2024 07:36:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
07:36:18
General datetime
2024-06-15 07:36:18Z
For Database
2024-06-15 07:36:18
For HTTP1.1
Sat, 15 Jun 2024 07:36:18 GMT