The Day of the Antichrist?
Today is a day that comes only once every hundred years and is associated with the Antichrist because it is 06-06-06. People may be feeling a bit wary about today and are taking it as a day of the devil--even advancing or delaying the births of their babies with a June 6th due date.
Even though 666 is called "the number of the Beast," it may be more on the superstitious side to fear another usual Tuesday of the week rather than trusting the One who made the day to be more powerful than any demonic association.
Besides, the number may have been miscalculated anyway. :)