That is what sailors do to prepare their ship for a storm at sea.

VOA: special.2009.05.24

A navigator needs to know what time it is on his ship and also the time at another place of known longitude -- at the very same moment.

VOA: special.2010.07.14

I'm not aware if they took any other valuables, but what is a fact is that the ship was saved, it was rescued, and it was delivered to the harbor, and it is still there,".

VOA: standard.2009.09.26