Status: Confirmed. Diablo 4 Season 15, the Season of Hell’s Legacy, goes live on September 15, 2026 at 10 a.m. PDT (5 p.m. UTC). Blizzard set the time ahead of launch, and the season rolls out worldwide at the same moment rather than region by region.
Quick answer: The new season starts at 10 a.m. PDT / 1 p.m. EDT / 6 p.m. BST / 7 p.m. CEST on September 15. Players in East Asia, Australia, and New Zealand cross into September 16 because of time zone differences.
Release time: September 15, 2026 — 10 a.m. PDT / 5 p.m. UTC
Season 15 release time by region
The launch lands in the morning for North America and in the evening for Europe. Use the times below to line up your log-in.
| Region | Local time | Date |
|---|---|---|
| US Pacific (PDT) | 10 a.m. | Sept 15 |
| US Eastern (EDT) | 1 p.m. | Sept 15 |
| Brazil (BRT) | 2 p.m. | Sept 15 |
| UK (GMT/BST) | 5 p.m. / 6 p.m. | Sept 15 |
| Central Europe (CEST) | 7 p.m. | Sept 15 |
| South Africa (SAST) | 7 p.m. | Sept 15 |
| Moscow (MSK) | 8 p.m. | Sept 15 |
| India (IST) | 10:30 p.m. | Sept 15 |
| Beijing (CST) | 1 a.m. | Sept 16 |
| Japan / Korea (JST/KST) | 2 a.m. | Sept 16 |
| Sydney (AEST) | 3 a.m. | Sept 16 |
| New Zealand (NZST) | 5 a.m. | Sept 16 |
Seasons often follow a roughly 30-minute staggered start to keep servers stable. If the Seasonal Journey does not appear right away, relog around 30 minutes past the hour. Expect queues, since this 30th Anniversary season is likely to draw a large returning crowd.
How to confirm the season is live
Once the servers flip, the Seasonal Journey and the Season of Hell’s Legacy content appear on your account, and you can create a fresh Level 1 seasonal character. If you still see the previous season after the start time, close the client and log back in.
Season 15 also marks the game’s arrival on Nintendo Switch 2 as the “Age of Hatred” collection, launching the same day.
What launches with Season of Hell’s Legacy
This is the 30th Anniversary season for the franchise, and its theme leans on Diablo’s past. Here is what unlocks when the season begins.
Waking Nightmares and the Prime Evils
Waking Nightmares are randomized dungeons you reach through portals that appear in the overworld. They come in three sizes, from single-room open-world fights to standard dungeons and larger Capstone-style runs. The higher tiers rebuild classic areas such as the Tristram Cathedral and end in showdowns against a Prime Evil — Diablo, Mephisto, or Baal.
Defeating these bosses lets you bear a Splinter of Evil, the season’s core buff. Each one grants themed combat powers and its own reputation track, and only one can be equipped at a time.
Soul Splinters and returning Uniques
Soul Splinters are a new socketable gem type for Jewelry, offering strong bonuses paired with a downside to balance them. You can slot up to three and combine them in the Horadric Cube to raise their rarity. Nine Uniques also join the game, many pulled from earlier Diablo titles, including Leoric’s Crown, the Stone of Jordan, and The Furnace.
Rebirth and quality-of-life changes
The Rebirth system returns, letting you carry an existing Eternal Realm character into the season as a fresh Level 1 hero while keeping its class, name, and appearance. War Plan progress is now shared across characters in the same game mode, Mythic Unique crafting is being simplified, and new Horadric Cube recipes let you reroll affix values and Talisman base affixes.
Balance shifts arrive alongside the content, with the Warlock expected to sit near the top of the class rankings based on the August test realm. Whether you plan to reset a long-running character or dive into the new Soul Splinter builds, the season opens for everyone at the same global moment on September 15.
