In the Settings app, go to Accessibility > Touch > Back Tap and choose one of two options: double tap or triple tap. You should see a list of actions you can run by tapping the back of your iPhone, ...
You can also change the time using the xset s [value] command, where [value] is the time in seconds. The default value is 600 ...
This is an MCP (Model Context Protocol) server that provides access to data from DATA.GOV.HK, the official open data portal of the Hong Kong government.