"All Day" Calendar Events Set to 3 Days (instead of 1) - for 11 March 2023 and beyond!

[russellhltn]

Not sure why the display is worried about in/out of DST.

If times are stored in GMT, then Mountain Standard Time is GMT-7 while Mountain Daylight is GMT-6. Some months (like March) will have both MST and MDT events on them.

[dotson98]

Yes, but to the end user, Sacrament meeting is at 10am during DST, and will continue to be at 10am outside of DST. Maybe that answers my question - if the system stores it in GMT, then when the clocks change, it will be off. That's complicated.

[russellhltn]

Maybe that answers my question - if the system stores it in GMT, then when the clocks change, it will be off. That's complicated.

Correct. But it gets worse. When saving a repeating event, the DST has to be accounted for to get the correct GMT time. To use your example, if you save a 10AM sacrament meeting, some will be saved at 10AM+6 and others at 10AM+7.

[dotson98]

I live and die by my Outlook calendar. I wonder how they are doing it?