I'm proposing 3rd March, the clocks change this weekend and I can't stay up til 4am every weekend. Since it's Jesus' dead in a cave holiday if you're Christian, it means you can misbehave and not sin. If like me you're pagan, you're a heathen and thus invulnerable to blasphemy.
If that's not a good day for you, by all means shout it here, we don't want anyone to feel left out. Also I cannot believe how much time has flown since the last one!