My events have a different time than in Apple's calendar

Time differences are always caused by calendar using different timezones: this can cause your events to be one or more hours off, for example. The solution is to ensure both apps use the same timezone.

Also see

Ensure the iPhone's calendar and Week Calendar are using the same timezone:

If this fails:

Please remove your synced iCal calendars from your iPhone, wait 5 minutes and re-add them again. This usually clears the timezone cache of your iCal calendars.