For something like this, I have no intention of participating.
IMO, energy conservation should be a way of life, not something you do just once a year. What's the point of turning all your lights off for an hour in a single day of a year when you leave all your lights on the remaining 364 days?
Practice it on a daily basis and make conservation a habit, not just something you do when there is a special day.
Electricity cannot save, once you generated it, use it or lose it.
If electricity company doesn't co-operated and still generate the same amount of electricity,
then, what's is the point to save or waste it?