Finally I can reproduce this bug, thank you noetus! I fixed this in the upcoming version (1.5). This is again a bug related to timezone offsets and this a difficult area, as the timezone offset is handled differently for events, birthdays, allday events, and tasks. I may have reintroduced old bugs, but I tried my best to test this fix with testcases from older bugs. Please don't be upset if something doesn't work (again), just report back if there are any bugs and I will try to fix it asap. regards Nicolai