I do not have a clock in my sewing room. I do wear a watch but when I am sewing I rearely look at it. I know I need to move and change activities about every 45 minutes to give my arthritis attention. My sewing room is llike the casinos--timeless. Thankfully I'm retired so I don't have to run my life by the clock anymore. I love it when I am in that "Zone" in my sewing room!