When does the day begin?

Time: When in London it's -10 and +14 for beginning of day.

So at midnight, the new day began 10 hours ago (or starts in 14 hours) at the same time!

OR at 10am the new day begins...

Apparently, if you divide 1 by 998,001 you get all three-digit numbers from 000 to 999 in order http://t.co/xSvSgnkZ