Duty Time - FTL Calculator

Asef Jahmani

About this app

DUTY TIME - THE PROFESSIONAL EASA FTL CALCULATOR

Duty Time is the most complete EASA ORO.FTL calculator available for iOS. Whether you are planning a long-haul augmented operation or checking your 28-day block hours before signing a roster, Duty Time gives you instant, accurate answers - offline, with no account required.


FDP CALCULATOR

Know your maximum Flight Duty Period before every flight.

- Single, Augmented (3-pilot), and Double (4-pilot) crew
- Automatic WOCL detection for start and end encroachment
- All 7 extension rules applied correctly, including sector limits with WOCL encroachment and night-start cap (FDP capped at 11:45h when starting 22:00-04:59)
- Rest facility class for augmented and double crew (Class 1, 2, 3)
- Latest Chocks-On time displayed so you know exactly when the aircraft must be at the gate
- Results update live as you adjust inputs


REST PERIOD CALCULATOR

Never second-guess your minimum rest again.

- Home base and away from base calculations
- Time zone difference penalty (+1h per hour of difference, 4h or more)
- Returning to home base chart: 4 TZ = 24h, 5-8 TZ = 36h, 9+ TZ = 48h
- Augmented and Double crew sector penalty (+6h for more than 2 sectors)
- FDP extension penalty: pre+post +2h each, or post-flight only +4h
- Next possible report time shown clearly with date and day label


CUMULATIVE LIMITS TRACKER

Stay ahead of your limits before your roster catches up with you.

- Block hours: 100h in any 28 days, 900h in a calendar year
- Duty hours: 60h in any 7 days, 190h in any 28 days
- FDP extension counter: maximum 2 in any 7 consecutive days
- Color-coded progress bars: green, caution, near limit, exceeded
- Log duty entries with block time, duty time, and extension usage


SPLIT DUTY AND STANDBY

Two tools in one screen.

- Split Duty: validates combined FDP (max 10h), break duration (3-10h required), and shows remaining buffer
- Airport Standby: calculates FDP reduction for standby time exceeding 6 hours
- Live hints update as you type


WHY DUTY TIME

- 100% offline, works in the cockpit without any internet connection
- No account, no login, no personal data collected
- Covers all three crew configurations: Single, Augmented, and Double
- Dark mode and light mode, follows your iPhone system setting
- Built and verified against EASA ORO.FTL regulation text
- Clean, fast, and designed for real operational use


REGULATIONS COVERED

- ORO.FTL.205 - Flight Duty Period limitations
- ORO.FTL.210 - Rest period requirements
- ORO.FTL.215 - Standby
- ORO.FTL.235 - Cumulative flight time and duty period limitations

Regulation reference: Commission Regulation (EU) No 83/2014


DISCLAIMER

This app is a calculation aid and reference tool. It does not replace your airline's Operations Manual or official crew control systems. Pilots remain solely responsible for ensuring compliance with applicable regulations and company procedures. Always verify with your crew control department when in doubt.

What’s new

Duty Period Calculator: Enter report/chocks-on times to instantly calculate total duty and rest planning.
Cumulative Limits Upgrade: Added a Planned mode to scan future rosters for 7-day and 28-day peak limits, plus Exceedance Details to see contributing flights. Fixed future flight handling in Actual mode.
Bug Fixes: UI refinements and performance improvements.