Time Math for PilotsBuilt into Your Flight Bag
Fast, accurate arithmetic on flight durations. Add, subtract, multiply, and divide — with every result shown in both HH:MM:SS and human-readable time.
Built for the Way Pilots Work
The math you actually do in flight planning and logbook work — without the workarounds.
Time Arithmetic
Add, subtract, multiply, and divide flight durations. Handles negative results and duration-on-duration math the way pilots actually work.
Dual Format, One-Tap Copy
Every result shown as human-readable (“2 hrs 45 mins”) and HH:MM:SS. Copy either straight into your logbook.
Pilot-Friendly Entry
Colon key for durations; decimals for multiplying duty blocks. Switch formats mid-expression without clearing.
Session History
Every calculation from your session in both formats, ready to total when you need cumulative hours.
Portrait, Landscape, Dark Mode
Material 3 layout that works in your hand or on the yoke — and stays readable in low-light cockpits.
Zero Data Collection
No accounts, no analytics, no network calls, no permissions. The app can’t see your numbers.
See It In Action
A focused calculator — no menus to dig through, no cognitive overhead during a flight.
Calculator
Clean keypad with a dedicated colon key for entering durations.
Dual Format
Every calculation shown in both human-readable and HH:MM:SS.
Session History
Review and total prior calculations in the same dual format.
In-App Help
Seven guided topics — fully offline, no videos to buffer.
Built for the Everyday Math of Flying
Time Calculator does one job: arithmetic on flight durations. Add up a day of legs, figure the remaining time against a duty limit, split a block in half, or multiply out a scheduled rate — without fighting a spreadsheet or a general-purpose calculator.
Whether you’re a student pilot reconciling a training block, a commercial pilot totalling duty, or a CFI sorting lesson logs, the app gets out of your way.
Everything is calculated on-device. No account. No sync. No network. Your numbers stay in your pocket.
What’s Included
- Time arithmetic: add, subtract, multiply, divide with colon-based entry
- Dual display: HH:MM:SS and human-readable, side by side
- Session history: every result in both formats, one tap to copy
- In-app help: seven guided topics, fully offline
- Layout: portrait, landscape, and dark mode
- Privacy by default: no ads, no tracking, no permissions
Ready to Calculate?
Download Time Calculator today and get the dual-format time math you actually want.
Available for Android • $2.99