time-consuming reported A study conducted last year by the McKinsey Global Institute one quarter 2.6 hours a day on email Huffingtonpost waste hours each day The Huffington Post 2012 study Certaines études reported Huffingtonpost spending most workers undersÃ¸gelse fra 2012 Huffington Post a 2012 study McKinsey waste about 28% 2.6 hours per 2.6 hours per day bruger du en fjerdedel af din arbejdsdag på mails