24-hour schedules and weekly schedules are commonly used by those who want to use their time effectively and not forget their priorities. SumTech has created an Excel 24hr x 7day calendar broken up into 15min increments (or 5min for the super ambitious) that fits on one page. Highlighted colors are used to differentiate types of activities like work, meetings, school, travel, social, sleep, free time, etc. that are programatically added together. This is a useful tool to prioritize what a general week should look like or to examine what you really do in a week.