Blizzard has published maps that clearly show Diablo IV's release date and time in different time zones

The developers of Diablo IV have published a map showing the start date and time of the game's pre-release and release.

Here's What We Know

• On all platforms, Diablo IV will pre-load on May 31 at 01:00 CEST / May 30 at 4 p.m. PDT;
• Those who pre-ordered the Deluxe and Ultimate editions can begin the game on June 2 01:00 a.m. CEST/June 1 4 p.m. PDT;
• Diablo IV will be released in total on June 6 at 01:00 CEST/June 5 4 p.m. PDT. PDT.

From release day and for four weeks, viewers of certain Diablo IV streams on Twitch will be able to receive in-game cosmetic items as a bonus, but to do so they must "link" their account to their Twitch account.

Source: Twitter