The Timed Release mode is the perfect solution if you want to control the shutter with great precision. This mode has a single parameter:
Exposure: This parameter controls the exposure in hours, minutes, seconds and milliseconds. In order to change the parameter, touch the exposure value and a numeric keypad will appear. You can type in the desired exposure value.
Once you set the parameters and press start button (the orange tick located at lower right corner), a status screen will be opened as below.
You can stop the mode by touching Stop button (Lock icon) 2 times. When you touch first time, the lock will be opened and when you touch it second time, mode will stop.