I would just do a general thing with time if you have trouble with time in and of itself?

Are you often late to appointments with others (work, meetings, medical appointments, visiting friends when a "time" is giving, etc.)? Why? If it is because you are doing other things, like checking or other OCD things, then I'd say there was a too "much" time problem.

There's really no such thing as multi-tasking; one can do really fast serial tasking but you cannot attend to more than one thing at a time. If you are talking on the phone and making dinner, for example; you have to switch your attention back and forth; you can't truly listen and respond to the person on the phone and do much else besides "stir" the pot; you can't be thinking about what temperature to set the oven at and listen, your brain can't do it, can't think "proper over temperature" and "friend's son Johnny is in trouble at school again" both in the same thought space!

A lot of thinking problems is not working to direct one's thinking; no one can know what they are going to think "next" so we can't "control" our thinking but we can direct it; if we think X we can decide to keep thinking about X or to go on to another thought. Sometimes it can be really hard to keep a thought in our head and keep developing that thought ("dinner prep") especially if it is not something we particularly want to do or if we find it boring, but it is possible. The whole txting/drive car thing is an effort to multi-task and we know how that doesn't work in that instance, despite some idiots' beliefs they can do it.

If one is doing repetitive tasks that one does not want to do; one is aware of the "time" it is taking (presumably because one would rather be doing "something else"). If you are trying to go to work or bed but have to check the stove or the door locks over and over, there's a sense of frustration about doing so. If you do not have any sense of frustration in what you are doing, do not wish you were elsewhere because you are not aware, then, if you are doing things for "too long" it is probably another problem, one of awareness rather than compulsion?