10:10:10 on 10-10-10
You’ll need to wait another 100 Gregorian calendar years until it happens again. The odds are therefore pretty high that this will be the only one we’ll experience in our lifetime. Enjoy it.
101010 is, incidentally, the binary string for the number 42. And as any self-respecting geek knows, 42 is the Ultimate Answer – the answer to Life, the Universe and Everything.
And try not to worry too much about the doomsday prophets or the ‘your computer will go into meltdown and crash into a black-hole of oblivion’ predictions. If you’re reading this, all is well and life is continuing as normal.