"Mon, 13 May 2024 01:48:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240513
Only TIME
01:48:38
General datetime
2024-05-13 01:48:38Z
For Database
2024-05-13 01:48:38
For HTTP1.1
Mon, 13 May 2024 01:48:38 GMT