// how much downtime is

99.999% uptime = 5.3 min down per year.

That's 5.0 nines. Allowed downtime at 99.999% availability:

per year5.3 min
per month26 s
per week6 s
per day1 s

The neighborhood

what one more nine buys you
90%36.5 days/yr
99%3.7 days/yr
99.5%43.8 h/yr
99.9%8.8 h/yr
99.95%4.4 h/yr
99.99%52.6 min/yr
99.995%26.3 min/yr
99.999% ← you are here5.3 min/yr

Azure services live at specific rungs of this ladder — see the SLA dataset, or compute the composite for your whole environment from one Resource Graph query.

ⓘ Designed availability, not a guarantee.