Children learn to calculate differences between time zones in the 50 states in this hands-on mapping and math worksheet. Students first look at a map depicting six time zones: Alaskan, Hawaii-Aleutian, Pacific, Mountain, Central, and Eastern. They also see examples of what the time difference might be at given times of the day. Students then use the map to answer six word problems. Designed for a fourth grade math curriculum, this worksheet also lends well to a study on time and geography.