Yes indeed, I think it's easier when setting a conference call if I know it will be 3pm here, 10am there and 8pm over there than figuring out that "it will be i

Yes indeed, I think it's easier when setting a conference call if I know it will be 3pm here, 10am there and 8pm over there than figuring out that "it will be in the middle of the morning for that person, late evening over there". Also, when traveling I think it's much easier to adjust your body to a different clock that getting used to get up at some weird time and getting to bed at another weird time. To avoid jetlag you need to trick your body into believing in the local time, not your home time, so having the same time everywhere won't help at all.