"Sat, 15 Jun 2024 04:56:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
04:56:35
General datetime
2024-06-15 04:56:35Z
For Database
2024-06-15 04:56:35
For HTTP1.1
Sat, 15 Jun 2024 04:56:35 GMT