When Does Season 16 end and Season 17 begin?

ok that's what i thought. thing was, they didnt really do a good job advertising or "announcing it". Since they say it is subject to change and they will give us 2 weeks notice, I wasn't sure if it was going to end or not yet. Normally there would be a banner before we login that says "Season 16 ending soon!"

Even blizzard doesnt care

for the 5 people who still play the game a season reset means nothing - you get fully geared and can run gr70 in about 3 hours so basically doesn't change a thing

dunno what you expected.
if you ever played diablo 2 in your life (did you?) you would know that Blizzard send messages about resets 30 minutes before.
of course the informations are available on bnet for whoever is not too lazy to click.