Task | Time |
---|---|
Backup to Time Machine (Optional) | 5 minutes to a day |
macOS High Sierra Download | 20 minutes to an 1 hour |
macOS High Sierra Installation Time | 20 to 50 minutes |
Total macOS High Sierra Update Time | 45 minutes to an hour and 50 minutes |
https://en.wikipedia.org/wiki/Sesamoid_bone