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What time is it ?
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 At a particular place, the position of the sun in the sky is linked to time and it is thus possible to use this daytime star to determine the time; but it is not quite as simple as that...

To choose :  or ?

 
          1. The gnomon's shadow  
          2. A horizontal sundial  
          3. A vertical sundial (local meridian)  
          4. An analemmatic sundial  
          5. The reduction at the equator  
          6. The Figure of Eight of Mean Time  
          7. The Equation of time  
          8. From sundial to watch