Android Screen timeout

Notes on Android internals

Settings, Sound & Display, Display settings, Screen timeout is implemented in packages\apps\Settings\src\com\android\settings SoundAndDisplaySettings.java

Given that 60,000 is one minute, and 120,000 is two minute, therefore, the value is stored as milliseconds.

To retrieve the value,  Settings.System.getInt(getContentResolver(), SCREEN_OFF_TIMEOUT, value);
To set the value, Settings.System.putInt(getContentResolver(), SCREEN_OFF_TIMEOUT, value); 

See also: android.provider.Settings.System