"Fri, 17 May 2024 20:19:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240517
Only TIME
20:19:44
General datetime
2024-05-17 20:19:44Z
For Database
2024-05-17 20:19:44
For HTTP1.1
Fri, 17 May 2024 20:19:44 GMT