Doesn't this become completely unglued once you've got people in different time zones, with different DST settings, using the same calendar?
If I have a meeting every day at 10am local time with someone in Arizona, their meeting suddenly jumps by an hour when my time changes. (Similarly, if it's my Arizonian colleagues who set the meeting to be at 10am daily, I'm suddenly meeting them at 11am my time once spring hits.)
If I have a meeting every day at 10am local time with someone in Arizona, their meeting suddenly jumps by an hour when my time changes. (Similarly, if it's my Arizonian colleagues who set the meeting to be at 10am daily, I'm suddenly meeting them at 11am my time once spring hits.)