The details courtesy of Wales Online:
How to Watch Sunday's Rare Supermoon Lunar Eclipse in the UK
Lucky star-gazers across the UK will be able to see the supermoon lunar eclipse on Sunday night, a phenomenon that was last seen in Britain more than 30 years ago.
The supermoon lunar eclipse occurs when the moon passes through Earth's shadow, which creates the illusion that it's turned a fiery red as light from the sun bends around the Earth. It also means that within the space of a few hours the moon will be at its darkest, then at its brightest and a whole 14 percent bigger, which is bound to look pretty spectacular.
It'll be the first eclipse of its kind since 1982 and Nasa has revealed that we'll have to wait until 2033 to spot another one - time to make the most of it now. The eclipse will last five hours and 11 minutes and start at 1.11am early Monday morning for those of us who live in the UK. But it'll start getting really good at about 3.47am. If you live in Wales there's a big chance you'll be able to view it, but those in England may not be so lucky.