Having a good sense of the passage of time is a skill. A successful career relies on being punctual and conscientious. I find that the easiest way to keep track of time is to have clocks everywhere. When you can actually see time represented, you are likely to be more conscious of the amount of work you can do and procrastinate less. Keeping good track of time prevents spending money on cabs or breakfasts on the go because you’re running late!