Not everyone watching on August 12, 2026 will see the same thing. Depending on where you are, you might experience a few minutes of true darkness — or simply notice the sun looking a little different than usual. The difference matters, especially when it comes to keeping your eyes safe.
What is a total eclipse?
A total eclipse happens when the moon completely covers the sun, as seen from a narrow band on Earth's surface known as the path of totality. Within that path, for a few brief minutes, the sky darkens dramatically, temperatures drop, and the sun's corona becomes visible around the dark disc of the moon. This is the only moment during an eclipse when it can be safe to remove certified eclipse glasses — and only if you're confirmed to be within the path of totality itself.
What is a partial eclipse?
Outside the path of totality, but across a much wider area, people will see a partial eclipse instead — the moon covers only part of the sun, leaving a crescent of sunlight visible. For the 2026 eclipse, large parts of Europe outside the narrow totality band will experience a partial eclipse, with the amount of the sun covered varying depending on location.
Why this distinction matters for safety
During a partial eclipse, the sun is never fully covered — there's always a portion of it directly visible. Even when 99% of the sun is blocked, that remaining sliver is still bright enough to cause serious eye damage without certified protection. This is why certified eclipse glasses meeting EN ISO 12312-2:2015 need to stay on for the entire duration of a partial eclipse — no exceptions.
This is also why pack size matters more than people expect when buying for a group. A partial eclipse viewed from home with neighbours, or a family gathering for a few hours outdoors, means every single person needs glasses for the entire time they're outside watching — not just for a dramatic peak moment. If you're estimating numbers for a group, it's worth rounding up rather than down; glasses get shared, misplaced, or handed to a curious neighbour who wandered over, and EN ISO 12312-2:2015 protection only works if the person looking up is actually wearing it.
By contrast, during totality within the path, the sun is completely blocked, and for that brief window it becomes safe to view with the naked eye — though glasses go straight back on the moment any sliver of sunlight reappears.
What this means for your planning
If you're outside the path of totality, you'll experience a partial eclipse only — and your certified glasses will be needed for the whole event, likely well over an hour. If you're travelling to be within the path of totality, you'll get a partial eclipse before and after, plus a short window of totality in between — meaning glasses stay on for most of the event, with one clearly defined window where they come off.
Either way, certified eclipse glasses meeting EN ISO 12312-2:2015 are essential. Total or partial changes what you'll see — it doesn't change how much eye protection you'll need throughout almost the whole thing.