Suggestions on time tracking app? (not for payroll or billing)

[Andrew C.]

Anyone have a suggestion for tracking/recording time spent on activities? Not for payroll (no employees) or for billing (not getting paid by the hour), so I don't care if it integrates with quickbooks, for example.

Just looking to 1) know what I'm spending time on 2) maybe establish prof RE status or as evidence that another venture I'm trying is, in fact, a thing I'm trying to run as a business even though it is currently losing money and hence might be viewed as a hobby.