Niko on 28 Apr, 2021 02:41 PM
I’m sorry for the late reply!
It is possible to do this: Right-click on a task in the task list and select “Get Info”. Then you can set the rounding for this task's (and all subtasks’) timings.
To display the rounded times in decimal format in the “Timings” view, select “decimal duration” and check “Show rounded durations” in the title bar.