Comment by Muromec

Government wants a number -- they get a number. How I get to the number is precise enough in my opinion and you are free to disagree with my methodology.

When I was doing it, I worked in an actual startup and granularity of time allocation was in weeks. This week I was doing the thing, the other I was mostly doing bugfixes/refactorings etc.

You could do more precise and account with hour or minute granularity with tools if you have to