Yes, there are 2 ways, if you log the workout with your watch. After the workout, you can scroll down on your watch and look at "last sport". Click the upper right-hand button on your watch to look at "last sport" more in depth. You will get a list of things you can look at/scroll down through. All stats, training effect, heart rate, and others. If you scroll down to heart rate and select that, it will show you the time in each zone from that workout. If you are using the Garmin in conjunction with the app on your phone, then it is even easier. Your last workout you logged will be the top bubble highlighted in red. Select that and it will show you a screen with 3 circles in the middle, including calories, total time, and average heart rate. Above those circles, on the far right, is a little box with a heart rate symbol on it. Push on that to show your heart rate breakdown for your workout. Scroll to the bottom to see zone 1 through 5 breakdown.