The current Sea of Thieves season is estimated to end around September 17, 2026(EST.). 36 days left. The Battle Pass (999 Ancient Coins (~$9.99 USD)) closes at the same moment — anything unclaimed is gone forever.
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Season endedThis Sea of Thieves season has ended.Next season details are pending — check back soon.
Season progress60.18%
Start · Day 0Day 55 of 91 End · Day 91
Sea of Thieves season end time by country
September 17, 2026 at 15:00 UTC · EST
In your time zone15:00UTConSep 17
Sea of Thieves season end time by country — September 17, 2026 at 15:00 UTC
Location
Local time
Local date
Los Angeles
08:00 PDT
Sep 17
Chicago
10:00 CDT
Sep 17
New York
11:00 EDT
Sep 17
São Paulo
12:00 GMT-3
Sep 17
London
16:00 BST
Sep 17
Berlin
17:00 CEST
Sep 17
Moscow
18:00 GMT+3
Sep 17
New Delhi
20:30 GMT+5:30
Sep 17
Singapore
23:00 GMT+8
Sep 17
Tokyo
00:00 GMT+9
Sep 18 +1 day
Sydney
01:00 GMT+10
Sep 18 +1 day
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FIG. 01 — Official trailerXbox Game Studios (Rare) via YouTube
The Story This Season
Season 20: Custom Seas launched June 18, 2026 at Xbox Games Showcase 2026, adding free private custom-rule servers where crews set their own gameplay parameters, add items and enemies, freely assign crews, and capture footage in Free Camera mode. Sea of Thieves seasons run 13 weeks — Season 20's end date is not officially confirmed until shortly before the next season.
Date verified against official publisher announcements and in-game season panels.
Historical cadence data is context only — official dates always take priority.
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About this season
Sea of Thieves Season 20: Custom Seas is estimated to end around September 17, 2026 (verified August 12, 2026). Track the live countdown for Sea of Thieves Season 20: Custom Seas. Synced with official developer announcements and updated every second in your browser.
When Does Sea of Thieves Season 20 End?
Sea of Thieves Season 20: Custom Seas launched June 18, 2026 and is estimated to end around September 17, 2026 — a 13-week season, matching the exact duration of Season 19 (March 19 – June 18, 91 days). Rare has not officially confirmed the exact end date and typically posts it only shortly before the next season launches, so the countdown above tracks the estimated end while the endDateConfirmed flag remains false.
Season 20 introduces Custom Seas — private, custom-rule servers that let crews set gameplay parameters, add items and enemies, freely assign crews, and capture footage via Free Camera mode. Originally announced as a subscription feature, Custom Seas was made free for all players before launch.
Sea of Thieves Season History
Sea of Thieves seasons run roughly 13 weeks (~90 days) each. Season 19 ran March 19 – June 18, 2026 (91 days), preceded by Season 18 (December 11, 2025 – March 19, 2026, 98 days) and Season 17: Smugglers' Tide (August 14 – December 11, 2025, 119 days).
The rhythm has stabilised near 13 weeks since Season 19, so Season 20's late-September 2026 end estimate follows Rare's most recent published cadence rather than an announced date.
Sea of Thieves Battle Pass (Plunder Pass) Cost
The Sea of Thieves seasonal Plunder Pass costs 999 Ancient Coins (roughly $9.99 USD). Free-track Renown progression is available to all players; the Plunder Pass unlocks premium cosmetic rewards across the season's 100 Renown levels.
▼ FREQUENTLY ASKED
When does Sea of Thieves Season 20 end?
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Season 20: Custom Seas launched June 18, 2026 and is estimated to end around September 17, 2026, matching Season 19's exact 91-day (13-week) run. Rare typically confirms the precise end date only shortly before Season 21 launches, so the date is not officially confirmed yet.
How long do Sea of Thieves seasons last?
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Sea of Thieves seasons target around 13 weeks (~90 days). Season 19 ran exactly 91 days, Season 18 ran 98 days, and Season 17 ran 119 days. Recent seasons have converged on the shorter 13-week cadence.
What is Custom Seas in Sea of Thieves?
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Custom Seas is Season 20's headline feature — free private servers where crews set custom rules, add items and enemies, freely assign crews and factions, and use a Free Camera mode to capture footage. Originally announced as subscription-only, Rare reversed course to make it free for all players.
When did Sea of Thieves Season 19 end?
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Season 19 ended on June 18, 2026, exactly 91 days (13 weeks) after its March 19, 2026 start, when Season 20: Custom Seas launched at Xbox Games Showcase.
How much does the Sea of Thieves Plunder Pass cost?
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The Sea of Thieves seasonal Plunder Pass costs 999 Ancient Coins (roughly $9.99 USD) and unlocks premium cosmetic rewards across the season's 100 Renown levels. Free-track Renown progression is available to all players.
What platforms is Sea of Thieves available on?
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Sea of Thieves is available on Windows (Microsoft Store + Steam), Xbox One, Xbox Series X|S, and PlayStation 5. Cross-play is supported across every platform.
What time does Sea of Thieves Season 20: Custom Seas end in my time zone?
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Sea of Thieves Season 20: Custom Seas ends at September 17, 2026 at 15:00 UTC. In local time that is 11:00 EDT on Sep 17 in New York, 08:00 PDT on Sep 17 in Los Angeles, 16:00 BST on Sep 17 in London, 17:00 CEST on Sep 17 in Berlin, 00:00 GMT+9 on Sep 18 in Tokyo. Every conversion is derived from the official UTC timestamp, so cities east of UTC can already be on the following calendar day when the season closes.