I'm looking for a software for individual task management - like a to-do list with priorities, but that would schedule work time on a project based on the expected time to complete the task and priority. I know there's Microsof tProject and others, but I can't seem to find anything that isn't focused on large team projects.
Use the List or Kanban view to organize your tasks, set labels for prioritization and set up a custom field with estimated hours. The different columns in your Kanban Board can show the sum of all the hours in this column. You can also add start and end dates and view everything in the calendar.
There is so much more you can do just have a look at the features we offer or the templates. Maybe this task planner template would be a good start: https://zenkit.com/templates/18
The only software I am aware of that seems fitting is SkedPal https://www.skedpal.com/
I was so surprised that this isn't easier to find that I posted it on HN just now.
Unfortunately though (for me) there does not seem to be a (paid) self-hosted (privacy aware) version available.
If you're an emacs user, org-mode with agendas is nice too.
With org-mode you can "check in" and "check out" of tasks, so if you were keen assess how your estimated time to completion differed from actual time to complete, that'd be a place to start.