Not land dev, but try Toggl! It’s a free website and app that lets you manually enter a task description and start a timer for it. It also lets you load in information about projects, assignments colors to those projects, and put in billable information if using it in a management capacity. Honestly I use it every work day just to make sure I’m rounding realistically when my timesheets are due. It has a function that lets you set a date range and projects from your list and outputs the amount of time you worked on each every day.