It is important to remember that ship class 1-3 will reach max speed with sails sloped 45º to the wind, while ship class 4 and above will reach max speed with full wind directly from behind. When sailing into the wind you should go half sails. First sail with the wind to gain momentum, then change course into the wind while at the same time lowering to half sails.
The distance and the needed time can be recorded with an easy guideline. Important about it is: Per 100 nautical miles at 10 knots you need about 10 minutes (real time).
The one who sails faster reaches his goal faster, logically. But how can you sail faster?
Some factors which influence speed: