On 5 May your 1800 ZT DR position is LAT...

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Question 1 of 2066636eea28f7522a1c51ae2a

On 5 May your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?

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Question 1 of 20

66636eea28f7522a1c51ae2a

On 5 May your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?

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🔍 Key Concepts

• Zone Time (ZT) vs Greenwich Mean Time (GMT/UT) and how longitude affects local time • How to determine the zone description (ZD) from longitude (east and west of Greenwich) • Using the Nautical Almanac sunset time for the assumed longitude and converting it to your vessel's local zone time

💭 Think About

• First, think about what time of day 1800 ZT is where you are and whether sunset at your latitude in early May is likely to be before or after this time. • Consider how far your longitude is from the standard meridian of your time zone and whether your local ZT should be ahead of or behind GMT. • Ask yourself: Do you need to account for your vessel’s movement between 1800 and sunset, or is the sunset time essentially the same for all ships on that longitude at that date?

✅ Before You Answer

• Confirm the correct zone description (ZD) for longitude 65°35.0'W and whether it is negative or positive when converting between ZT and GMT. • Verify that you are using the correct date and latitude (05 May, 26°N) when looking up sunset in the Nautical Almanac. • Double-check whether the problem expects you to adjust for change of longitude during the next hour or so, or to use the 1800 DR position as fixed for the sunset calculation.

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Question 1 of 2066636eea28f7522a1c51ae2a

On 5 May your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?

Back

Question 1 of 20

66636eea28f7522a1c51ae2a

On 5 May your 1800 ZT DR position is LAT 26°11.5'N, LONG 65°35.0'W. You are on course 270°T at a speed of 12 knots. What will be the ZT of sunset at your vessel?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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