The answer is: we don't know yet. The armory updated only some characters.
If you would like to watch current results, check Legion level 110 rankings

Please keep in mind that:
1. All times are GMT.
2. The armory might not be updated yet for some characters.
3. Level time comes from account-wide achievement. So only your first character will participate in this ranking.
4. Some level info comes from guild rosters and the level time is unknown. In this case update time will be used.

We are working on more site updates, stay tuned!

In the meantime please also check Character item level rankings.