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Questions and Answers
When crossing the International Date Line (IDL) from East to West, what change will a person have to make?
When crossing the International Date Line (IDL) from East to West, what change will a person have to make?
- Subtract one day
- No change required
- Change the time by 12 hours
- Add one day (correct)
If it is Wednesday 10 a.m. at 15° E meridian, what will be the time at the International Date Line (IDL)?
If it is Wednesday 10 a.m. at 15° E meridian, what will be the time at the International Date Line (IDL)?
- Wednesday 9 p.m. (correct)
- Thursday 6 p.m.
- Thursday 2 p.m.
- Wednesday 6 a.m.
According to the international convention, at which meridian does the day and date change occur?
According to the international convention, at which meridian does the day and date change occur?
- 0° meridian
- 45° meridian
- 180° meridian (correct)
- 90° meridian
Why is the International Date Line (IDL) not a straight line like the 180° meridian?
Why is the International Date Line (IDL) not a straight line like the 180° meridian?
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