A user interface on a computing device can utilize a calendar bar with various portions of the interface, such as a lock screen and home or application screens. The calendar bar can enable the user to view upcoming appointments and determine how much the user has before those appointments. The user can tilt the device or select an appointment to obtain additional information. If the device is unlocked or otherwise accessible, the user can also navigate back and forth between a calendar display and other information, such as past or present actions with respect to the device, and can scroll back in forth in time using any of these displayed portions.