What 99% uptime means

Many Hosting providers guarantee 99% or 95% uptime. How much is that?

If it’s up… It’s down… per year
90% 876 hours
95% 438 hours
99% 87 hours, 36 minutes
99.9% 8 hours, 45 minutes, 36 seconds
99.99% 52 minutes, 33.6 seconds
99.999% 5 minutes, 15.36 seconds
99.9999% 31.68 seconds

Read more about what 99% uptime means.

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