You've heard of smartphones, smart TVs, and even smart kitchen appliances—but have you heard of a smart calendar? For those of us without a dedicated assistant, Clockwise is a Google Chrome extension that can add more time to your day.

Scheduling and shifting meetings can be quite the time killer. If you're inundated with meeting requests or struggle to get a solid block of time to focus on your to-do list, the Clockwise calendar extension is designed to help make your day work better for you.

Powered by artificial intelligence, this tool can shift meetings to increase uninterrupted time during your day and also handle scheduling conflicts—sans all the back-and-forth emails. In managing your calendar, it not only factors in other meeting attendees' calendars when proposing alternative meeting times, but it also considers their respective time zones. Further, its customization features enable you to set your preferred meeting hours and even earmark those meetings that cannot be moved.

By eliminating the busywork that comes with scheduling, you will free up time during your workday and in turn have a better opportunity to increase your productivity. As a vote of confidence, this tool has a 4.7 out of 5 rating from more than 80,000 reviewers.