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What kind of clock does 91.205(d) require for IFR flight?

Hours, minutes and seconds.

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  1. One showing hours, minutes, and seconds with sweep-second or digital display ✔
  2. Any wristwatch showing hours and minutes
  3. A timer that counts down from 60 seconds

Why: 91.205(d)(6) requires a clock displaying hours, minutes, and seconds, with a sweep-second pointer or digital presentation. The seconds are important for timing legs and approaches.

Huh, didn't know that: A digital display satisfies the rule just as well as a sweep-second hand.

The dad joke
Controller: "Delta 351, you have traffic at 10 o'clock, 6 miles!" Delta 351: "Give us another hint! We have digital watches!"
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References

Answer: One showing hours, minutes, and seconds with sweep-second or digital display. 91.205(d)(6) requires a clock displaying hours, minutes, and seconds, with a sweep-second pointer or digital presentation. The seconds are important for timing legs and approaches.

  1. 14 CFR 91.205 Powered civil aircraft: instrument and equipment requirements www.law.cornell.edu/cfr/text/14/91.205
    A clock displaying hours, minutes, and seconds with a sweep-second pointer or digital presentation.
    Checked 2026-10-10.

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FlyingWhich instrument is required for IFR under 91.205(d) but not for day VFR?FlyingTo act as PIC under IFR, how many instrument approaches must you log in the preceding 6 calendar months?FlyingYour instrument currency has lapsed for more than six calendar months. How do you become current again?

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