The event will be the first time such coverage has been visible from the UK since the total solar eclipse of 1999. Unlike a total solar eclipse, it will not become completely dark, but daylight levels may noticeably dim as the eclipse reaches its peak. When is the solar eclipse? Solar-viewing glasses (Image: Optegra Eye Hospital Bradford)He stresses that ordinary sunglasses do not provide sufficient protection. The groups will be talking to visitors about how to view the eclipse safely and will be handing out certified eclipse glasses, courtesy of Go Stargazing, while stocks last.