This challenging game develops skills in calculating beginning, ending and elapsed times. There are 40 double-sided game boards at 4 different levels of difficulty. Provides lots of practice in reading and comparing analogue and digital time notations. The 70 double-sided calling cards feature 35 word problems for interpretation and solution at each of the 4 levels. Also includes plastic markers, Guide and more. 2-20 players. GR: 2 - 5.