org: Clocking work time
8.4 Clocking work time
======================
Org mode allows you to clock the time you spend on specific tasks in a
project. When you start working on an item, you can start the clock.
When you stop working on that task, or when you mark the task done, the
clock is stopped and the corresponding time interval is recorded. It
also computes the total time spent on each subtree(1) of a project. And
it remembers a history or tasks recently clocked, to that you can jump
quickly between a number of tasks absorbing your time.
To save the clock history across Emacs sessions, use
(setq org-clock-persist 'history)
(org-clock-persistence-insinuate)
When you clock into a new task after resuming Emacs, the incomplete
clock(2) will be found (Resolving idle time) and you will be
prompted about what to do with it.
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