In light of several small hot fixes that are being pushed out tonight, the scheduled NA inactive name cleanse has been pushed back ~24 hours and will now be happening on Wednesday, 6/19 at 2am PDT.
Here is Udyr with the details:
"2AM on 6/19 is the scheduled time.
We are delaying the name cleanse for NA by one day and shifting the date to Wednesday, 6/19, at 2am PDT. We are rolling out 3 hotfixes tonight for NA, and other regions. To be safe, we are not going to do all of these things at once, and that is why we are pushing the name cleanse to Wednesday.
Here is a list of the fixes we are pushing out tonight:
Nashor's Tooth crashing the game when using smart cast
Spells cancelled by going out of range are still going on cool down
Various localization fixes"