@ClaraSandelind In advanced settings I think you can deactivate support for time zones. Then u should get the times of your appointments fixed (I hope).
Israel's 1st ambassador to the UN, Abba Eban, once described it as follow:
"If Algeria introduced a resolution declaring the earth flat and that Israel flattened it, it would pass by a vote of 164 to 13 with 26 abstentions". Enough said.