Start a timer in seconds, try the Pomodoro technique or just looking for a (world)clock in your menu bar?

Check out these Mac Menu Bar Time Apps:

Eye Timer

Eye-timer

Eye Timer helps you to follow the 20-20-20 rule for preventing eye strain: “Every 20 minutes take 20 seconds to look at something 20 feet (6 meters) away.”

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mprove

This menu bar app shows in real-time your daily productivity and procrastination progress based on the free time you have every day.

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