Alert reminder window cannot be dismissed when computer timezone changes

I created an event with an alarm im my home timezone (UTC+1). Now I am travelling. I temporarily set my timezone to a new value (UTC-8). The alarm goes off at the right time according to my home timezone, but I cannot dismiss the reminder. The reminder window keeps popping up when I click “Dismiss”.

This is on 4.0.14479.0.

Hello, thank you for the report. We are now analyzing the problem and will try to fix it ASAP.

Thank you.

So, in the meantime I noticed a pattern… I can dismiss an alarm that went off according to my home timezone when the same time is reached in the new timezone. For example, given the timezones I mentioned above, I can dismiss an alarm 9 hours after it went off.

Maybe this helps debugging the issue.