Productivity experts break down how these 6 calendar hacks, from scheduling focused work to ’time boxing’, help them work smarter

• Productivity experts spell out how their calendars are tools that make them more efficient.
• One describes cutting his working week from 100 to 35 hours.
• “If I removed all distractions, and was militant about my use of time, I could get everything done.”

There are multiple forms of calendar: Up-to-the-minute apps, in-built platforms and old-fashioned paper journals.

But they all have the potential to make your working day as productive as possible. How you use them, though, is personal.

Insider spoke to three productivity experts about how they get the most out of their calendars in a world where there is no “one size fits all” for maximum productivity.