Grrreat.
Not only do we have to deal with glorious sun, luscious vegetation, beautiful people and fascinating culture, we also have to cope with time zones.
Um. That started out sarcastic I think. Never mind.
As far as I can work out, the Dominican Republic is 5 hours behind the UK, and Taiwan is 7 hours in front. The links take you to a page that tells you the right time..
Both countries don't use Daylight Saving Hours, so what happens in the winter/summer? The clocks in the UK go back in the autumn, so Dom Rep must be 4 hours behind then, and Taiwan must be 8 hours ahead???? Oh why does the world have to be round?