EMOM stands for Every Minute On the Minute, so at the top of each minute you’ll perform the movement listed and then rest until the top of the next minute. Perform the second movement listed and then rest – and so on, cycling through all the listed movements until the entire time given is complete. Generally there will be around 20-40 seconds of rest between movements.
Similarly, you may see a workout such as, “Every 90 seconds x 6 sets” with two or three movements listed. On a running clock, perform the first movement at 0:00, the second at 1:30, the third at 3:00, and so on until all the sets are complete.