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The Daily Insight

How is SLA uptime calculated

Author

Gabriel Cooper

Updated on April 22, 2026

“Monthly Uptime Percentage” will be calculated as follows: the number of minutes the Services are accessible and not suffering from a Service Outage as reported to Company by Customer during each calendar month, divided by the total number of minutes in the calendar month.

What is a good SLA uptime?

SLA Uptime Metrics First and foremost, clients of IT service providers want to be sure that the service remains up. The industry standard is five 9’s, or 99.999% availability. … In fact, when viewed over an entire year, what many companies offer can leave customers down for much longer than they think.

How do you calculate SLA downtime?

  1. For a daily time in seconds: Daily downtime periods = 86400 – (Uptime * 86400) …
  2. For a weekly time in seconds: Weekly downtime periods = 604800 – (Uptime * 604800) …
  3. For a monthly time in seconds: Monthly downtime periods = 2592000 – (Uptime * 2592000) …
  4. For a yearly time in seconds:

How is SLA percentage calculated?

Displaying plans Resolution SLA% = The percentage of the number of tickets resolved within the SLA divided by the total number of tickets resolved during the selected time period within the filters.

How is SLA calculated for applications?

The expected percentage of time for a simultaneous failure is 0.0001 × 0.001, so the composite SLA for this combined path is: Database or queue = 1.0 − (0.0001 × 0.001) = 99.99999%

How long is 99.99 uptime?

Availability %Downtime per yearDowntime per month99.8%17.53 hours87.66 minutes99.9% (“three nines”)8.77 hours43.83 minutes99.95% (“three and a half nines”)4.38 hours21.92 minutes99.99% (“four nines”)52.60 minutes4.38 minutes

Is 99.5 SLA good?

Service Level Agreements from companies usually explains that the product they are supporting will be up or available for X% of the time. 90% is good, 99% is even better, and some go on up to 99.99% or higher, but what does that mean for a business in plain terms?

What is SLA rate?

A service-level agreement (SLA) defines the level of service you expect from a vendor, laying out the metrics by which service is measured, as well as remedies or penalties should agreed-on service levels not be achieved.

What does 99.9 percent uptime mean?

Uptime is the amount of time that a service is available and operational. … For example a 99.9% uptime equates to 43 minutes and 50 seconds of downtime. The below calculator provides an easy way to calculate the downtime allowance as a time period based on a provided uptime percentage.

What are SLA metrics?

SLA metrics are internal metrics used by customer support teams to set targets for the proportion of customers who will receive a predefined minimum level of service.

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How do you calculate tat hours in Excel?

  1. =end-start =5:00PM-8:00AM =0.375-0.708=.333 // 8 hours.
  2. =1-start+end.
  3. =IF(end>start, end-start, 1-start+end)
  4. =MOD(end-start,1)
  5. 42614.4166666667 // date + time.
  6. =C5-B5 // end-start.
  7. [h]:mm.

How do I calculate hours between two dates?

I calculate total number of hours between two dates, then subtract the number of midnights multiplied by 16 non-business hours per day, then subtract the number of weekends multiplied by 16 (8+8 business hours for Sat+Sun).

How is BPO tat calculated?

TAT is a metric, which may form part of the SLAs agreed. TAT is usually associated with the ‘timeliness’ and ‘completeness’ measure. … For example, if you measure the TAT for a helpdesk query, it is measured from the time the query was first received (or picked by the agent) till the query is answered or resolved.

How is SLA calculated in hours?

  1. For SLA which uses 24/7 default calendar. For tickets that met the SLAs, Time to Resolution as x = (SLA – displayed value in green) For tickets that did not meet SLA Time to Resolution as y = (SLA + displayed value in red) Sum of hours = ( Σx + Σy ) = z . …
  2. For SLA which uses 9-5 calendar.

How much cumulative downtime per year will an SLA percentage of 99.95 give?

SLADowntime per weekDowntime per year99.9%10.1 minutes8.76 hours99.95%5 minutes4.38 hours99.99%1.01 minutes52.56 minutes99.999%6 seconds5.26 minutes

How does AWS calculate SLA?

SLA Definitions “Instance-Level Uptime Percentage” is calculated by subtracting from 100% the percentage of minutes during the month in which a Single EC2 Instance was in the state of Unavailability.

How do you get 99.99 Availability?

The accepted availability standard for emergency response systems is 99.999% or “five nines” – or about five minutes and 15 seconds of downtime per year (see table below). To achieve five nines, all components of the system must work seamlessly together.

How is SLA adherence calculated?

The KPI Library defines SLA Compliance as “The total number of incidents resolved within SLA time divided by the total number of incidents.” In fact, this is the calculation used by many service centers, to determine how well they’re meeting their Service Level Agreements.

Is 99% uptime good?

99.9% uptime guarantees (referred to as “three-nines”) have become the new standard for most digital services. They provide decent availability with only a small amount of unplanned downtime. … 40 minutes, 19.2 seconds of downtime every month and. 8 hours, 44 minutes and 9.6 seconds of downtime every year.

Is SLA a KPI?

So, in a nutshell: SLAs are different to KPIs. SLAs are documents that outline the wider service agreements between a service provider and its customers, while KPIs are generally used to measure the performance of companies against their strategic goals.

How is SLA KPI measured?

Unlike more specific KPIs and indicators, your SLA is an umbrella for a variety of different metrics. Therefore, the easiest way to measure them is to include a specific tab on your IT dashboard that can easily monitor all of them at once. Depending on your SLA IT terms, you’ll have to cover a wide variety of tools.

What is included in SLA?

What’s in an SLA? The SLA should include not only a description of the services to be provided and their expected service levels, but also metrics by which the services are measured, the duties and responsibilities of each party, the remedies or penalties for breach, and a protocol for adding and removing metrics.

What are the 3 types of SLA?

There are three basic types of SLAs: customer, internal and multilevel service-level agreements. A customer service-level agreement is between a service provider and its external customers. It is sometimes called an external service agreement.

What is difference between SLA and KPI?

The difference between SLAs and KPIs An SLA is an agreement between you and your customer that defines how your relationship will work in the future. Key performance indicators (KPIs) are the metrics chosen to gauge how well a team performed against agreed standards.

What is tat formula in Excel?

Open the file in excel. You can see the time in minutes against each ticket, across the statuses you have. Create a new column in the end that says ‘Total Minutes’. Use the formula =SUM(Status1,Status2,..Statusn) where status 1,2,…n will be pending statuses.

How do you calculate time duration?

  1. Convert both times to 24 hour format, adding 12 to any pm hours. 8:55am becomes 8:55 hours (start time) …
  2. If the start minutes are greater than the end minutes… …
  3. Subtract end time minutes from start time minutes… …
  4. Subtract the hours… …
  5. Put(not add) the hours and minutes together – 6:45 (6 hours and 45 minutes)

How do you calculate the difference between two dates excluding weekends?

If you’d like to calculate the difference between two dates while excluding weekends and holidays, use the NETWORKDAYS function instead. This also looks for 3 arguments: the start date, the end date, and optional holidays. Unlike the WORKDAY function, the NETWORKDAYS function does include or count the start day.