I need to download google location history data in kml for a period of time.
Up until August 26, 2015, a URL in this format worked:
https://maps.googl
Undocumented changes to stable Google geo products are why I've been moving my personal and work projects from Google to open source products like Leaflet.
I've also been trying to figure how to get old-school location history kmls, but I'm not having any luck. The kml header information reflects that you have asked it to download a longer period of time, but it only actually includes placemarks for a few days.
A short term workaround is to download this app: https://play.google.com/store/apps/details?id=com.homedev.locationhistory
It's able to download 1-7 days of history, which you can then export as a kml. I'm not sure if the devs have cracked the url formatting or if they just loop through the short timespan data several times to make it look like it is downloading a week at a time.