iceland.jpg

Signal/Noise graph produced by ACE-HF
This shows that to work the Iceland station from within the UK, 40m (7 MHz)
is probably your best bet from around 0600UTC to1000 UTC
and then again in the early evening/night.
20m (14 M Hz) is a possibility (just!) from 1000UTC until 2100UTC,
but will be marginal. Do check 10 MHz too in the green zones -
I have never heard IMD stations operating on 30m myself.