Double innings matches usually have at least six hours of playing time each day, with formal intervals on each day for lunch and tea, and additional brief informal breaks for drinks. There is also a short interval between innings. Limited overs matches often last at least six hours, with similar intervals and breaks, whilst the more streamlined Twenty20 matches are generally completed in under four hours. T10 cricket is a newer version of the game, based on the principles of other limited overs formats, but with only 10 overs per innings, and the total playing time limited to 90 minutes.