I have a client where a user insists on only using their webmail to access their email. When she attempts to print out the calendar week, Sunday is displaying twice, which then moves the scheduled tasks a day early.
Sun Nov 4 Sun Nov 4 Mon Nov 5 Tues Nov 6 etc
All tasks scheduled for the day they're supposed to be on get moved one calendar day to the left. So Tuesdays meetings are printing for Monday.
I closed her Zimbra just to see if it was temporarily acting up but it did it again upon reload. I also tried different views and it did this for each mode selected.