Geolocation Capacitor timestamp question

With Geolocation plugins (capacitor and native look the same), the returned timestamp is the timestamp from GPS signal or is the timestamp from the device? I’ve look and search in the documentation but I’ve found an answer…
Thanks.

For iOS it returns timestamp | Apple Developer Documentation

For Android it returns Location  |  Android Developers

So as I understand it, it’s the timestamp from the location provider (not necessarily the GPS signal, there are other location providers)