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Weather servicesQuestion 376 of 934

A TAF shows a valid period of 1012/1112. What is the valid period?

  1. From 1200Z on the 10th to 1200Z on the 11th
  2. From 1000Z on the 12th to 1100Z on the 12th
  3. From 1200Z on the 11th to 1200Z on the 12th
  4. From 1012Z to 1112Z on the same day
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Correct answer: From 1200Z on the 10th to 1200Z on the 11th

The first two digits of each number give the date. The last two give the hour.

Source: Aeronautical Information Manual (FAA, Basic with Change 3, 9 July 2026), AIM 7-1-28 Key to TAF and METAR, page 581

Practice weather services

Questions last reviewed: 18 October 2026