When you’re pushing through a challenging workout, try this trick to stay motivated: Count backward. An NYU study shows time seems to go faster when you’re counting down. Use it to your advantage:

• At the gym. Hop on exercise machines that have a countdown timer. Cheer yourself on as the clock winds down… Just 5 more minutes — easy! Or use a smartphone app to try interval training: Alternate 30 seconds of higher-intensity effort with periods at a slower pace.

• Around the neighborhood. Go out for a walk or jog with a deadline in mind — 30 minutes until your favorite TV show starts, for example. You could also use the sun as your timekeeper. Or check the sunset time for your area, plan a route, and challenge yourself to make it home before dark.

Beat the clock during today’s workout and feel extra pep in your step.