1000000

In-universe

 * By halfway through the year
 * In a society like the European, humans have become enslaved by giraffes who live in tall castles and strip the trees of all their leaves.

Trivia

 * The fourth medieval period in history (assuming none other occurred between the 24th century and 2526th century)
 * The idea of their being a "year 1000000 1/2" is really a joke, as that would technically make it the year 1000001