Time Tracking Update after Completed (Like Harvest App)

It would be great to have a set page on the site just for time tracking where you can update the time worked just like in Harvest App.

Right now, it doesn’t seem possible to be able to update the time worked after it’s already been completed. It would be great to be able to adjust it in case the timer ran long or you forgot to track it.

Also, if possible to be able to categorize that tracked time such as business development, customer support, marketing, etc.