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Subtract 5 days/year of downtime and call it Microsoft 360, they already own that trademark anyway.

The Register kept track, and started calling it Microsoft 362, Microsoft 361, etc. https://www.theregister.com/2020/10/01/microsoft_exchange_on...

"We're available 24 minutes per hour, 365 hours per year!"

you have to account for leap years

Excel is notoriously bad at that :)

Back in 2020 I was disappointed they didn’t rename it to 366.