Some places maintain a zone time of -13....

Question 1 of 2707066636ee928f7522a1c519e36

Some places maintain a zone time of -13. What are the time and date at Greenwich if the zone time and date are 2152, 10 January?

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Question 1 of 27070

Q

Some places maintain a zone time of -13. What are the time and date at Greenwich if the zone time and date are 2152, 10 January?

🔍 Key Concepts

• Zone description (ZD) and how its sign (+/-) relates local time to GMT/UTC • How to convert from a negative zone time (e.g., -13) to Greenwich Mean Time (UTC) • Handling date changes when crossing the International Date Line or adding/subtracting more than 12 hours

💭 Think About

• Is a zone description of -13 east or west of Greenwich, and does local time lead or lag GMT in that case? • To get from local zone time to GMT, do you add or subtract the zone description? What does that do numerically to 2152? • After you convert the clock time, does the date stay the same, go one day earlier, or one day later? How do you decide that?

✅ Before You Answer

• Confirm the correct rule: GMT = Zone Time ± Zone Description (decide which sign is correct for going TO GMT). • After adjusting the time, check carefully if crossing 0000 or 2400 requires changing the calendar date. • Verify that your final answer’s time difference between local and GMT truly matches a 13‑hour offset in the correct direction.