Changing the system datetime breaks cursur

Bug Reports
1

Describe the Bug

when I change the system datetime when working with a project that processes reservations, the ai will no longer respond, and I get invalid user errors instead.

Steps to Reproduce

change the date that’s displayed on the start menu clock in windows, and then ask the AI a question in cursur.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.4.4 (system setup)
VSCode Version: 1.99.3
Commit: dd05130a0bf8d5f1a5372e6e6bb7c4184786eaa0
Date: 2025-08-10T22:39:50.197Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.26100

Does this stop you from using Cursor

Yes - Cursor is unusable

2

Hey, thanks for the report. Changing the system date can disrupt Cursor and LLM chat because it causes SSL certificates to appear invalid and authorization tokens to be treated as expired or not yet active. As a result, the server blocks requests, and some APIs may refuse to work if the device’s time is out of sync. The only way to restore functionality is to reset the system date to the correct value.