Uptime and downtime with 99.99 % SLA

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Agreed SLA level: % (enter SLA level and hit the <enter> key)

SLA level of 99.99 % uptime/availability results in the following periods of allowed downtime/unavailability:

• Daily: 8.6s
• Weekly: 1m 0.48s
• Monthly: 4m 21s
• Quarterly: 13m 2.4s
• Yearly: 52m 9.8s

Direct link to the page with these results: uptime.is/99.99 (or uptime.is/four-nines)

The SLA calculations assume a requirement of continuous uptime (i.e. 24/7 all year long) with additional approximations as described in the source. uptime.is was originally implemented in newLISP, which had powered uptime and downtime calculations for more than a decade.

For convenience, there are special CEO and SEO friendly links for N nines: three nines, four nines, five nines, six nines etc.