Hover or tap underlined Spanish terms to see their translation and exam tip.
En los husos horarios, la máxima diferencia en tiempo que podemos tener entre la hora del huso (Hz) y la hora civil del lugar (Hcl) es de:Within standard time zones, the maximum time difference between zone time (Hz) and local mean time (Hcl) is:
Show the answer
Correct answer: b) 30 minutes.
Why it is correct
Each time zone spans 15° of longitude (1 hour), extending 7.5° on either side of its central meridian. Since 7.5° equals 30 minutes of time (7.5 × 4 min/° = 30 min), the maximum difference between zone time and local mean time within a zone is 30 minutes.
Why the others are not
- a) 7.5° is the half-width in arc, which equals 30 minutes in time.
- c) 60 minutes (15°) is the full width of the zone, not the offset from its central meridian.
- d) 15 minutes corresponds to only 3° 45′ of longitude.
How to work it out in the exam
- Maximum |Hz − LMT| within a time zone: 7.5° = 30 minutes.
Where this question comes from
- Región de Murcia · 2024 · 2ª convocatoria · CY Tipo 1 · question 7 Official paper · Official answer key
Pending instructor review. Machine translation, not reviewed.