Introducing Overlap Atlas! Very similar to another little web app that I made a few weeks ago, making use of Android timeline data and Spotify data, I now have another little web app for visualizing overlaps of 2 peoples timeline data (or lack of overlaps).
You can load one or more Google Timeline exports into the app and assign them to specific people. Just like the last project, your uploaded data stays securely in your browser. Once your files are loaded, you can draw geofences to outline areas to look at and split out.
From there, you get multiple visualizations for where people have been, and when and where overlaps happen: