C-17 Duty Day Calc

C-17 Duty Day Calc

by John Robbins

13 ratings
8 reviews
#200 in paid Utilities
🔧 Utilities
✈️ Travel
$0.99

Details

  • Released
  • Updated
  • March 11, 2014
  • April 16, 2022

Features

C-17 Duty Day Calc screenshot #1 for iPhone
C-17 Duty Day Calc screenshot #2 for iPhone
C-17 Duty Day Calc screenshot #3 for iPhone
C-17 Duty Day Calc screenshot #4 for iPhone
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About

Calculate duty day restrictions for C-17 crews in Zulu and local time zones. Quickly determine restrictions based on alert, show, or takeoff times. Includes a time calculator and the ability to add custom timelines.

Duty day restriction calculation
Zulu and local time zone support
Instant restriction calculation
Custom timeline addition
Time calculator (start, duration, end)
781 decimal duration support
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What's New in C

4.25

April 16, 2022

Fixed glitch with "night mode" causing text to turn white.

Charts

Top Paid

📉 200-27

Utilities

This app dropped -27 positions in Utilities chart.

Last updated on August 8, 2026.

User reviews

Still same issue with font

Decent app but some of the inputs are unreadable like another review said. Would be really helpful if this would be worked out.

Great Calculator! So helpful

Update: thanks for the quick fix! Wish we could get that hour back. The flying has been pretty great! Also, not sure if I did something to my settings, but the font is all white now and difficult to read.

Love the calculator to help with everything we need to know. The only ask is that for bravo, “last beer” calculates wrong. It gives you 11 hours prior instead of 12. Would appreciate if you guys could update that so that it doesn’t get anybody in trouble after being tired and possibly not realizing the calculation is wrong. Otherwise, absolutely a great app!
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Response from developer

Thanks for pointing that out. I just submitted an update to Apple. Look for ver4.7 in the next couple days. Hope you're flying some good trips.

Awesome app but new version issue

Awesome app, but the new update screws up the color scheme when using an iPhone with “Dark Mode” selected in phone settings under “Display and Brightness”.

Bravo is unreadable and just the input boxes are unreadable for the other pages but they are harder to read (white on light blue for airland). I think most people use dark mode these days so I’m sure I’m not the only one who would appreciate you looking into it. Thanks in advance!
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Keep up the great work!

I really like the app a lot. Clean interface and easy to use.

One minor suggestion though: can you please make the “take off time local” block editable that way you can calculate everything based on local time?

Response from developer

seoperator77, you sound like a 89th pilot... those guys have been asking for that feature for a while. I'm not sure when I'll be able to reopen the code and cut into it that deep, but I've got it on the list for the next major release. Thanks for the suggestion! -john

A recommendation

I really like the app, thanks for the work to make our lives easier on the road. One recommendation, "Time Calculator" - "Duration" needs to have a decimal point input capability. All the best!
-Bill

Developer apps

FAQ

What is C-17 Duty Day Calc used for?

C-17 Duty Day Calc is a utility app designed to help C-17 aircrews quickly calculate applicable duty day restrictions in both Zulu and local time zones. It simplifies the process of determining these restrictions based on alert, show, or takeoff times.

Does C-17 Duty Day Calc have ads?

No, C-17 Duty Day Calc does not contain advertisements. The app is ad-free, providing an uninterrupted user experience.

What devices is C-17 Duty Day Calc compatible with?

C-17 Duty Day Calc is compatible with iPhone, iPad, and iPod devices. It supports a range of Apple mobile devices.

How often is C-17 Duty Day Calc updated?

The latest version of C-17 Duty Day Calc is 4.25, last updated on April 16, 2022. While updates are not frequent, the app has been stable since its initial release in 2014.

What is the age rating for C-17 Duty Day Calc?

C-17 Duty Day Calc has an age rating of 4+. This indicates it is suitable for a wide range of users.

Can I add my own timelines to C-17 Duty Day Calc?

Yes, C-17 Duty Day Calc includes a bonus feature allowing you to add your personal or squadron timeline. This custom timeline can be linked to other calculator pages or used as a standalone planning tool.

What is the price of C-17 Duty Day Calc?

C-17 Duty Day Calc is a paid application priced at $0.99. This one-time purchase grants you access to all its features.

What kind of time calculations does C-17 Duty Day Calc offer?

Beyond duty day restrictions, C-17 Duty Day Calc includes a time calculator. This tool can determine start time, duration, or end time when the other two are provided, and it supports the 781 decimal duration format.