Flying Dragons · Aviation. Adventure. Own the Sky.

AIRAC Cycle Calendar Generator

What This Tool Does

Generates an .ics calendar file containing AIRAC effective dates — the 28-day international cycle for aviation navigation database updates (ARINC 424 format).

Useful for pilots and aviation professionals using Garmin, Jeppesen, ForeFlight, etc. to stay compliant with current nav data. Optional reminders help you check for updates early.

Dates are calculated using the standard AIRAC epoch (1901-01-10) and align with Garmin's published update schedule.

Create Your Calendar

Start Date (defaults to today):

End Date (defaults to one year later):

Reminder before each effective date: (options: None, 7 days, 14 days — 7 days is default)

How to Import the .ics File

Google Calendar: calendar.google.com → Settings → Import & export → Select file → Import
Apple Calendar: Open .ics on iPhone/Mac → Add to Calendar
Outlook: Calendar → Add calendar → From file → Upload .ics
Most calendar apps support direct .ics import.

Built by Ingram Leedy (Flying Dragons) · ingramleedy@gmail.com