SLA & Uptime calculator: How much downtime corresponds to 80 % uptime

Flexible SLA Calculator

Specify uptime requirement per weekday

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

SLA level of 80 % uptime results in the following periods of acceptable downtime during the various reporting periods:

Allowed downtime by reporting period
Weekly	12h 0s
Monthly	2d 4h 10m 39s
Quarterly	6d 12h 31m 57s
Yearly	26d 2h 7m 48s

Direct link to the page with these results: uptime.is/complex?sla=80&wk=mmmmmaa

Current Monitoring Periods

Current monitoring periods (hours per day)
Monday	12 hours/day
Tuesday	12 hours/day
Wednesday	12 hours/day
Thursday	12 hours/day
Friday	12 hours/day
Saturday	0 hours/day
Sunday	0 hours/day

For convenience, there are some quick links for a number of common monitoring periods:

Relaxed working hours (6 hours/day Monday–Friday)
Normal working hours (8 hours/day Monday–Friday)
Extended working hours (10 hours/day Monday–Friday)
Extreme working hours (12 hours/day Monday–Friday)
Founder's working hours (24/7)

Custom Monitoring Periods

Specify a number of hours the availability shall be measured on specific weekdays. 0 means that there will be no measuring on a given day (e.g. on Saturdays and Sundays), while 24 states a requirement of 24 hours of uptime on a given day.

Custom monitoring periods by weekday
Monday	hours/day
Tuesday	hours/day
Wednesday	hours/day
Thursday	hours/day
Friday	hours/day
Saturday	hours/day
Sunday	hours/day