What is the problem?
the print time on the gcode does not reflet the same amount of time on the slicer, 3hour print job taking 9 hours
What did you already try to solve it?
adjusted multiple setting
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, octoprint.log, serial.log or output on terminal tab, ...)
The printer will show the time it will take. The Slicer is a very bad estimate IMHO
I don't think I have ever had a print come out with the time the slicer said it would take.
And as you print, octoprint adjusts the time it says is remaining based on calculations it makes on actual print time per layer etc.