My Timeline history is missing — or stops a few months back

The AI Memory Cookbook · Help · All updates & help

First, the most important sentence on this page: nothing in this book — and nothing in the system you're building — ever deletes anything. This page exists to stop a deletion, not to do one. On Google's side, Google Timeline has an auto-delete setting, and for many accounts it is set to delete activity older than 3 months. If your history stops at a rolling boundary a few months back, this setting is almost certainly why. Stop the leak first — before importing anything.

You can read the steps below yourself, or paste this block to your assistant and let it walk you through them one at a time:

Guide me, one step at a time, to check my Google Timeline
auto-delete setting on my phone:

1. I will open: Settings, then Location, then Location services,
   then Timeline.
2. If there is an auto-delete option, we will set it to the
   longest choice, or "Don't auto-delete activity", if offered.
3. After that, read back to me what my setting now is.

Do not change anything else. If my phone shows different words
than these, tell me what you think each option means and let me
choose.

Honest note: history already deleted by auto-delete is gone from the phone, and this page cannot bring it back. The journal starts from what survives — for many readers that is still a lot. Going forward, the cookbook's monthly local backup keeps a copy no setting can reach.