Need to be keep track of a timespan as time passes by? From total time and interval count, you can see time pass visually by as each interval is reached.
Let's say you're delivering a lecture and have a limited amount of time. Then it is very useful to be able to see time pass by as segments or intervals. You choose the interval count and type in the total time of whatever it is your doing, as a result you can see visually each interval pass and a counter increment. The first interval is marked by a green color, the half way marker is blue, and the next to last is orange and the last one is red. This way you're visually signalled where you are positioned in time.