Apple Watch - Calendar notifications do not match phone calendar

Winner winner, chicken dinner. Thanks for this. I went back and set my iPhone default calendar reminder to 2hrs.

Now, for the events where my Apple Watch was giving 24hr advance notice (instead of the time set by me or the meeting owner), the Apple Watch is now giving me a 2hr calendar alert.

You are right, this appears to be a bug, but at least we know what is causing it. Even though the Apple Watch calendar is set to "Mirror iPhone", my iPhone respects the alert that was set by the meeting owner (15 minutes, 1 hour etc.) The Apple Watch, however, appears to be looking instead at the phone's Default Alert Time and ignoring the meeting's actual alert setting.

I can reproduce this. It's occurring for certain meetings, whether set by me, or others.

This answer did solve my question, but it is still an unresolved bug. Go fix it Apple!

Thank you JudeGuzian.

I tried to toggle Calendar off then on from my iPhone. Unfortunately it is already set to the "off" position. This is probably because the calendar comes from my Office calendar, not iCloud.

In my watch app I also tired to Reset Sync Data, but tapping the link appears to do nothing at all. There is no confirmation, the link doesn't change state and my calendar on my watch looks the same.

I am still getting 24hr notifications for meetings that have a 15 minute notification set. They work fine on the phone. The watch is set to mirror the phone, but it does not.

As an update, I did also update the watch to the new watch OS8. Unfortunately, different number, same bugs.

Thanks for the help thus far

Thanks for the reply @Utterbsc. Glad to hear I'm not the only one with this issue. I have recently also updated to the latest OS for the watch and my iPhone. Still the same issue. Phone calendar correctly alerts 1hr before an event or 15 minutes before an event, as set in the calendar item. Watch alerts for the same event 24hrs ahead of time.

This is super annoying, especially for meetings that I have on Mondays, which I would love to be reminded of while I am at work. Instead, my watch is giving me reminders on Sunday and by the time the meeting is pending, I've totally forgotten the reminder from the day before. It's missing the whole point of alerts!

Would love if anyone has any suggestions of how to fix this Apple Watch bug that's been going on for months, maybe years!

Thank you YDidIBuyApple, that is very interesting. On my iPhone I have now gone to Settings > Calendar > Default Alert Time. Your guess was correct, my Events was indeed set to "1 day before". Just for fun I have now changed that to "2 hours before". I will give it a few days to see if suddenly my watch starts notifying me 2 hours before my events, because I know that I have very few calendar items set to this reminder time. Great suggestion. Maybe not a fix, but it might help understand why the Watch gives different alarms than iPhone calendar. Perhaps it's looking at the wrong alert location. I'll reply back to this group if I see the behavior change. Thanks!