https://i.imgur.com/mICQWvb.jpg
Well, not really for science. I have a full map private server that I was having issues with on some server transfers, so after changing up ports and such I decided to go on a larger adventure while the map was empty to make sure everything was working. I also wanted to see how long it would take to do with all the factors such as the tornado things, ships of the damned, me avoiding islands, and of course no lag and rubberbanding that you get on official.
Anyways, 2 hours and 20 minutes later, my journey was complete. the shortest it took me to cross a server was 6 minutes and 42 seconds and the longest was 12 minutes 38 seconds.
Not quite sure where the whole "30 hours to cross" thing the devs were stating before release came from. The only sailing speed increase was a couple patches ago and that was what? 15%? So even 15% less speed would have made this no where near that 30 hour...