Today!
This morning!
Better views in the North, apparently.
'In London, where the Moon's disc takes its biggest bite out of the Sun at 1016 BST (0916 GMT), a maximum of 12% of the star will be blotted out.
Conditions are better further north. In Lerwick in the Shetland Isles, the Moon will obscure as much as 36% of the Sun.'