Can anyone else confirm this? I regularly print out a month view of my calendar so I can manually amend or jot notes to it. Now, under Yosemite, if I print out a month the calendar is +1 day ahead. So, for example, if I want to print the month of November the calendar app displays Monday 27th October to Sunday 7th Dec ( the full four weeks of November) BUT if I try and print that it begins on Tuesday (the 28th Oct). In order to get the calendar to print weeks that begin on a Monday I have to set the preference to begin the week on a Sunday, print the month, then switch back to weeks beginning on a Monday for the calendar app to display accurately. I'm guessing this is some sort of Time Zone bug as I'm working on GMT and I bet the app is working on Apple Time in California!!