I looked at the odometer on my cateye computer today and it hit 6k miles. I bought it on 11/10/05. So technically I put miles on it in one year and a month. Although realistically I didn't ride last December or this October so I would like to think it was in 11 month of riding.
Now make it clear it's how many miles I have on this particular computer since I bought it last year. I had a couple of computers before it.