The average commuting times have fallen to a 10-year low of 47 minutes, mainly due to a rise in the number of people working from home, according to a study by the TUC.
The time spent commuting every day has seen a decline of nearly five minutes since 2006, theTUC said.
Figures show the number of people working from home rose by 291,000 between 2006 and 2008.
TUC general secretary Brendan Barber said: "It's great to see that the number of hours spent commuting to work is finally falling.
"UK employees already work some of the longest hours in Europe so it's doubly annoying to lose even more precious spare time stuck in traffic and packed on trains on the way to and from work.
"If more people are allowed to work from home we can make the daily commute shorter and more pleasant for everyone.
"We know there is still plenty of untapped demand for flexible and home-working, and with commutes still costing a staggering £337 million of working time every day, there's plenty more money and hours that can be saved by smarter working practices."
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