You can also change the time using the xset s [value] command, where [value] is the time in seconds. The default value is 600 ...
Whether you plan for it or not, some aspects of your Raspberry Pi projects can change over time. One of the most common things you'll likely end up changing is your Wi-Fi network. Maybe you upgraded ...
Sometimes, you don't have direct access to the Raspberry Pi running your project. Perhaps it's installed outdoors with no display and keyboard attached. Or maybe it was squeezed into a compact chassis ...