Kairos is an appointment and data manager with a modern GEM interface. It is easy to use and can be started as ACC or APP. Several calendars can be displayed simultaneously. Appointments can be repeated automatically, an alarm and archiving function is available. A daily and a monthly view is supported. Additionally Kairos contains an analog and a menu bar clock. The KAIROS diary format is compatible with the diary format of the internal appointment calendar of the ATARI Portfolio. It can be copied back and forth between KAIROS and Portfolio.