You will learn the theory at your own pace by distance learning first and will then only need to attend a 4-hour ground school session for consolidating your knowledge.
The flights (total 5 h minimum) will be agreed individually based on your own schedules. March is the perfect night flying month with long hours of darkness and already improving weather, while in April night flying training is also still possible. (In May, training for the NF rating becomes impossible while you may of course exercise the rights of your newly acquired rating then at night.)
Remember, if you are interested in the IR (Instrument flying) rating or the CPL (commercial pilot) licence later on, you will need to have the NF rating on your licence first!
The session on Sun 24 Feb 2013 will by default be held in Finnish.