DocsLists
Calendar view
A month of due dates; drag an issue to move its date.
The calendar shows a list's issues on a month, by due date. Switch to it with the view switch in the list's toolbar; the address gets view=calendar. It's there when the project has a due-date field.
Reading itLink to this section
Each issue sits on the day it's due, and today is marked. Issues with no due date are listed under the month, so nothing in the list goes missing.
Drag to change a due dateLink to this section
Drag an issue to another day and its due date changes at once. Drag one from the "No due date" list onto a day to give it a date. If YouTrack refuses the change, the issue goes back where it was.
Calendars on the dashboardsLink to this section
The project dashboard has a Calendar panel with every open issue due in the month, and each area dashboard has one for its area. They drag the same way. See Projects and their dashboard and Areas and their dashboard.
Search and filters apply to the list's calendar, so you can see, say, only your own work or only bugs.