"Mon, 15 Apr 2024 16:08:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240415
Only TIME
16:08:37
General datetime
2024-04-15 16:08:37Z
For Database
2024-04-15 16:08:37
For HTTP1.1
Mon, 15 Apr 2024 16:08:37 GMT