"Sat, 15 Jun 2024 07:40:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
07:40:41
General datetime
2024-06-15 07:40:41Z
For Database
2024-06-15 07:40:41
For HTTP1.1
Sat, 15 Jun 2024 07:40:41 GMT