To configure the notebook idle time on The Littlest JupyterHub (TLJH), follow these steps:

1. Open a terminal with admin privilege on TLJH.

2. Run the following command to set the idle time (in seconds) before the notebook server is considered idle:

   sudo tljh-config set services.cull.idle-timeout <idle-time-in-seconds>
   sudo tljh-config reload
   
   

Note: The idle time refers to the duration of inactivity on the notebook server before it is automatically shut down.