Time&Budget offers you the possibility to ignore tasks of a certain duration.
This duration is set to 480 minutes by default, e. g. to compensate erroneous times from forgetting to turn off the Subtask Timer.
You can change the maximum duration of tasks in the Time&Budget settings.
🎬 Time&Budget basic configuration
How to track time with Time&Budget based on tasks?
Should I use tasks or appointments for time recording with Time&Budget?