It depends where in Cornwall you want to travel to. Based on St Ives it would be between 6-7 hours with 2 changes. For Truro station you would be looking at a journey 5-6 hours with 1 suggested change en route.
About 8 hours to Penzance which is the end of Cornwall.
More details on your start and end points would have been helpful - HOWEVER - from London Paddington to Truro, a typical journey is roughly 4 hours 45 minutes.
Penzance to London Paddington - takes about five hours. See the related link for sample times from 'TheTrainline'
Just over 5 hours.
About 4 hours.
3.5 hours without wee break !
1hr 45mins
When traveling it is important to know the time it will take. A train ride from Leeds, UK to Birmingham, UK can take from 2 to 10 hours.
2 hours 15 minutes
About 2 hours by car & 3 by train.
About 1h10 by train (two trains an hour) or about 1h45 by car.
Birmingham to Bude is 209 miles and would take about 4 hours to drive, longer if you take a break or get stuck in a jam on route.
It takes as long as it takes to wipe your bum crack yeah after wet slippery carrot poo
How long does it take to drive from birmingham to norwich
42 hours
The platform on the north side (forgot the number)
no more than 30 minutes if there is a train in Alabama