Why the World's Richest Man Wants 3-Day Working Week

If the world's richest man had his way, you would be working only three days a week.

Carlos Slim, the wealthiest man on earth, according to Forbes, has once again made a case for a three-day working week, in order to improve work-life balance. He had first mooted the idea earlier this summer at a conference in Paraguay.

"You should have more time for you during all of your life -- not when you're 65 and retired," the Mexican telecom tycoon told CNNMoney in an interview. The 74-year-old is worth $82.1 billion, according to Forbes' estimates.

Although, Mr Slim is in favour of people working three days a week, he wants them to clock 11-hour shifts on the days in office. He is also in favour of pushing the retirement age to 75 years.

"It's a society of knowledge and experience. You have better experience and knowledge when you are 60, 65 and 70," he said.

People deserve more time for entertainment, family and to train for better jobs, he said.

Mr Slim said he was "sure" that the three-day working week will become a reality, although he did not give a timeline.