That depends on the kind of ship, the weather and the experience level of the crew.
Since Taiwan is only 125 miles away from the southernmost Ryukyu island, it probably does not take long to begin with.
15 days
11 days
6 months
It all depends on what your sailing on. 1800's sailing ship
how long does it take to sail from Pakistan to England
how long wil it take to sail from RSA to Odessa
You can't sail from London to Cologne.
Depends on what you take to fly, such as if you try to take an eagle from Okinawa to Bangkok, you might get there in about NEVER.
How long did it take for sir Walter Raleigh to sail across the world
a long time
6 months
a long time