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How to See When Garmin Database Cycles are Available to Download
A list of Garmin aviation database cycles can be found on the flyGarmin.com® website through the Database Update Schedule.
If you have the Garmin Aviation Database Manager application installed on your computer then you can also check availability by clicking on the Calendar View button found on the right-hand side of the application's Home page:
Clicking on the Calendar View button will take you to the Calendar page shown below:
There is a legend for this table found at the bottom of the Calendar page, seen here: