Aussies will see the day first. 
Monday, hospitals can count on many induced labors for mothers to be. They're freaking out. Don't want their baby born on 666.
A history of the number.
Here's where John wrote the book of Revelations while in exile.
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Also, Son House gave us the song, John The Revelator
Blues Lyrics - Son House - John The Revelator
Tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Now God walked down in the cool of the day, and called Adam by his name
But he refused to answer, 'cause he was naked and ashamed
So, tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Now Christ had 12 apostles, and three he laid away
He said "Watch for me one hour, while I go yonder and pray"
And tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Mary Margaret they were there, and they heard every word he said
Said "Go tell my disciples, I said meet me in Galilee"
And tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals.
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The use of the number 666 as a personification of evil comes from the Bible:
Here is wisdom. He who has understanding, let him calculate the number of the beast, for it is the number of a man. His number is six hundred sixty-six.
-Revelations chapter 13, Verse 18
Then, it continues later:
The smoke of their torment goes up forever and ever. They have no rest day and night, those who worship the beast and his image, and whoever receives the mark of his name.
-Revelations chapter 14, Verse 11

Monday, hospitals can count on many induced labors for mothers to be. They're freaking out. Don't want their baby born on 666.
A history of the number.
Here's where John wrote the book of Revelations while in exile.

Called 'Jerusalem of the Aegean', Patmos is an island made up of rocks and bays, its atmosphere biblical and peaceful. As you approach Patmos you cannot miss the monastery dedicated to the memory of St John the Divine (Agios Ioannis o Theologos), who, here, in one of the many caves of the island, had a vision of the Apocalypse (the Revelation). Boats arrive at the port, Skala, which is connected to Hora by an asphalt paved road, along which we can visit the grotto where the Apocalypse was written. Hora itself must be the most beautiful towns in the Aegean, with charming homes, colourful gardens, and churches interspersed among them. Once on the island, you must visit the famous Patmian School. Established in 1713, it functioned as a seminary and some of its students rose to the highest ranks of the Greek Orthodox Church. Other sites of particular interest are the church of Evagelistria, the monastery of Panagia Koumana & the Grikos church. Patmos has beautiful beaches: Merikas, Meloi, Agriolivadi, Lambi & Psili Ammos, just to name a few.
Also, Son House gave us the song, John The Revelator
Blues Lyrics - Son House - John The Revelator
Tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Now God walked down in the cool of the day, and called Adam by his name
But he refused to answer, 'cause he was naked and ashamed
So, tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Now Christ had 12 apostles, and three he laid away
He said "Watch for me one hour, while I go yonder and pray"
And tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Mary Margaret they were there, and they heard every word he said
Said "Go tell my disciples, I said meet me in Galilee"
And tell me who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals
Who's that writin', John the Revelator
Tell me who's that writin', John the Revelator
Who's that writin', John the Revelator wrote the book of the seven seals.

The use of the number 666 as a personification of evil comes from the Bible:
Here is wisdom. He who has understanding, let him calculate the number of the beast, for it is the number of a man. His number is six hundred sixty-six.
-Revelations chapter 13, Verse 18
Then, it continues later:
The smoke of their torment goes up forever and ever. They have no rest day and night, those who worship the beast and his image, and whoever receives the mark of his name.
-Revelations chapter 14, Verse 11
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