I bill my clients with a minimum of 15 minutes. If I find out that I accidentially recorded 12,5 minutes, it is hard to track down the exact value in the time sheet and correct it. Alternatively, maybe a feature would help that always rounds up my time entries to at least 15 minutes, 30 minutes, 45 minutes, etc.
Edit Time Entries from the Report View suggestion
As Kamil mentioned we already have such a feature. You can enable it by choosing Report time rounding in Time Tracking Settings: https://new.timecamp.com/app#/settings/addons/timesheets
Let us know if it was helpful :)