Duty day calculator provides easy access to all your duty day limitations. Comes with basic duty day profiles for AMC aircrew. All profiles are editable and you can create your own duty day profiles. You can also import and export profiles through text files so that you can share your custom profiles with other crew members. ===Features=== *Simplify duty day calculations *Use Takeoff or Alert time as baseline *All your flying day limitations in one place *Editable profiles - edit built in or build your own *Ability to import/export profiles for backup or sharing *Time calculator for adding and subtracting times *Real-World Time Zones!