Chief amongst them is the Wireless Command Center, an oblong remote control useable from anywhere in the home that lets users steer the Roomba, send it back to its base, schedule a cleaning and adjust its clock.

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The reasoning behind this advice is that the average person can only adjust their internal clock by an incremental amount of 60 to 90 minutes a day.

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That night, Boeheim forgot to adjust his alarm clock to account for daylight saving time, and so showed up late for a pre-practice coaches' meeting.

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He will adjust his alarm clock.

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Travellers on long-haul flights, for example to California, which is eight hours behind UK time, take about a week to recover as the body clock can only adjust by one hour a day, he said.

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