Correction… Just over 3 years
From and including: Saturday, October 28, 2017
To, but not including Tuesday, January 26, 2021
Result: 1186 days
Or 3 years, 2 months, 29 days excluding the end date.
https://www.timeanddate.com/date/durationresult.html?m1=10&d1=28&y1=2017&m2=1&d2=26&y2=2021