How long will it take to go blind by staring into the sun?

Answer:
It depends on how bright, dim or where the sun currently is during that period of time. As though i assume you mean direct contact it shouldn't immediately happen. Your retina will grow damage without you even noticing. Staring into the sun directly is very dangerous and can cause permanent damage. But, in other words to answer your question, directly staring into it shouldn't take more then 15-20 SECONDS.

It is very dangerous, so please don't no matter how much you think it won't damage, or even after doing it once you see that nothing happens, it does.

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A few SECONDS of staring into the mid-day Sun will blind you.

It's safe enough to do at dawn or dusk, for 20 or 30 seconds, but any longer risks blindness.
First answer by ID1219582861. Last edit by Kenwd0elq. Contributor trust: 523 [recommend contributor recommended]. Question popularity: 2 [recommend question].