Yes, timed is a Scrabble word!

Adjective

1. Regularly spaced in time

Verb

1. Measure the time or duration of an event or action or the person who performs an action in a certain period of time

2. Assign a time for an activity or event

3. Set the speed, duration, or execution of

4. Regulate or set the time of

5. Adjust so that a force is applied and an action occurs at the desired time