EASA NAV(A)intermediate
Select ALL statements that are useful when interpreting navigation time.
Answer
A 1° longitude difference corresponds to about 4 minutes of solar time, UTC is the common aviation time reference, Daylight saving time may change civil time relative to UTC
Explanation
The Earth’s rotation gives approximately four minutes of time difference per degree of longitude. UTC is the aviation reference, while civil time may be offset by time-zone rules and daylight saving. LMT is local and therefore not identical everywhere. **Key takeaway:** Separate solar time, UTC, and civil time.\n\n**Glossary:** **Solar time**: time related to the Sun's position; **civil time**: legally adopted local time.
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