Unless you're lucky enough to be in Iceland or Spain, you won't see the total eclipse, but for most of the UK, at least 90% of the sun will be disappear behind the moon, and for some parts over 95% will. Depending on where you are, the peak will be between 19:02 and 19:16. It will be the best eclipse in the UK in 27 years. Make sure you don't look directly at the sun, and take proper precautions like our wasp!
And if you haven't already, get your FunCon membership.