Weather servicesQuestion 375 of 934

A TAF contains the group FM150600. When does this change begin?

  1. 1500Z on the 6th
  2. 0600Z on the 15th
  3. 0006Z on the 15th
  4. 1506Z on the 1st
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Correct answer: 0600Z on the 15th

The FM group uses a 2-digit date, 2-digit hour, and 2-digit minute.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 7-1-28 Key to TAF and METAR, page 582

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Questions last reviewed: 18 October 2026