When is Prime Day 2025 – UK Dates Duration and Next Sale

Amazon Prime Day 2025 has come and gone in the UK, but the event marked a significant shift in how the company runs its biggest sale of the summer. For the first time, the event expanded beyond its traditional two-day window, raising new questions for shoppers planning their spending around the Amazon sales calendar.

The shift to a four-day format was not the only change. Amazon also introduced new features, including daily themed deal drops and an AI shopping assistant. For consumers trying to keep track, the key question remains simple: when exactly did it all happen, and what comes next?

When is Prime Day 2025 in the UK?

• Prime Day 2025 expanded to four days, up from the traditional 48-hour window.
• Amazon holds two major Prime member events in 2025: Prime Day (July) and Prime Big Deal Days (October).
• Prime Day 2025 is the summer flagship sale; Prime Big Deal Days is the fall event, often considered a ‘Pre-Black Friday’ event.
• The next official Prime Day after 2025 is expected in July 2026, but no dates have been confirmed.

Amazon confirmed the dates through its official news channels. According to the Amazon UK Press Release on Prime Day 2025, the event ran from 8 July to 11 July, expanding to four days for the first time ever. The European arm of Amazon’s news network corroborated this, stating that Prime members had “double the days to shop and save on millions of deals.”

How Long Does Prime Day 2025 Last?

Prime Day 2025 lasted 96 hours — a full four days. This was a notable departure from previous years, where the event typically ran for 48 hours. Amazon described it as its “biggest Prime Day event ever,” with customers saving billions across more than 35 categories.

What time does Prime Day 2025 start and end?

The event began at 12:01 a.m. PDT on July 8, which translates to 8:01 a.m. BST in the UK. It ran continuously until midnight PDT on July 11. For UK shoppers, this meant deals were available throughout the day and night for four consecutive days.

Was Prime Day 2025 a 4-day event?

Yes. The expansion to four days was the defining structural change of Prime Day 2025. Amazon introduced themed daily deal drops called “Today’s Big Deals,” with limited-time ‘New Deal Drop’ deals launching at midnight every day (PDT time). The company also debuted its AI shopping assistant, Rufus, in the UK, France, Germany, Italy, and Spain to provide tailored product recommendations during the event.

Is There a Second Amazon Sale in 2025? Prime Big Deal Days Dates

Yes, Amazon holds a second major Prime-exclusive sale in the fall. After the four-day experiment in July, Amazon reverted to a 48-hour format for Prime Big Deal Days, which ran on October 7–8, 2025.

The return to a shorter format represents a deliberate strategic choice. The fall event is often described as a ‘Pre-Black Friday’ sale, designed to capture early holiday shopping demand and compete with other retailers’ autumn promotions.

The dates for Prime Big Deal Days were confirmed via Amazon’s official Amazon Prime Big Deal Days 2025 landing page, as well as through social media announcements.

What is the difference between Prime Day and Prime Big Deal Days?

Prime Day is Amazon’s summer flagship event, held in July. Prime Big Deal Days is a fall event, typically in October, that serves as a preview to Black Friday deals. Both are exclusive to Prime members. The July event in 2025 was four days long; the fall event reverted to the traditional 48-hour window.

When is the Next Amazon Sale After Prime Day 2025?

Following Prime Day, the next major Amazon sale for UK shoppers is Prime Big Deal Days, held on October 7–8, 2025. After that, the next significant sales period is Black Friday, which historically takes place in late November, but Amazon has not confirmed specific dates or deals for 2025.

When is Amazon Prime Day 2026?

Amazon has not yet announced any dates for Prime Day 2026. The company’s focus remains on recapping the 2025 events. Industry speculation suggests a similar July window is likely, given the historical pattern, but this is entirely unconfirmed. No official sources have provided any indication of timing for 2026.

The two-event strategy — summer Prime Day and fall Prime Big Deal Days — reflects a broader industry trend toward multiple ‘Prime Day’ style events per year. Amazon has not indicated whether the four-day format will return in 2026.

Amazon Sale Calendar 2025 UK: Key Dates Timeline

1. July 8–11, 2025 — Amazon Prime Day 2025: Four-day summer sales event exclusively for Prime members.
2. October 7–8, 2025 — Prime Big Deal Days: Fall deal event, also for Prime members only, running the traditional 48-hour format.
3. Late November 2025 (TBC) — Black Friday 2025: Not an Amazon-specific event, but Amazon runs concurrent deals. Dates not yet announced by Amazon.

The Amazon UK Press Release on Prime Day 2025 serves as the primary official source for the July dates. The Prime Big Deal Days dates were confirmed via Amazon’s official landing page. Black Friday 2025 dates remain unconfirmed by Amazon at this time.

What is Confirmed and What Remains Unclear About Amazon’s 2025 Sales?

Why Did Amazon Change the Format in 2025?

Amazon expanded Prime Day to four days in 2025, a move that analysts suggest was intended to spread consumer demand and reduce pressure on shipping and logistics networks. By giving shoppers more time, Amazon could manage order volumes more evenly across the week.

The October Prime Big Deal Days event allows Amazon to capture early holiday shopping and compete with other retailers’ fall sales, including those from major rivals. The two-event strategy reflects a broader industry trend toward multiple major sales events per year, rather than concentrating all promotional activity into a single weekend.

For shoppers, this means more opportunities to find deals, but also a need to plan purchases carefully across the year. The shift to a four-day format in July may or may not return in 2026, as Amazon has not indicated whether the experiment was considered a success.

Where Can I Verify These Dates and Find Official Information?

“Amazon Prime Day 2025 ran from 8 July to 11 July in the UK, expanding to four days for the first time ever.”

— Amazon UK Official Press Release, aboutamazon.co.uk

“Prime Day is Amazon’s annual deal event on July 8-11 exclusively for Prime members.”

— Amazon.co.uk Prime Day page

“Prime Big Deal Days is a deal event on 07 and 08 October, exclusively for Prime members.”

— Amazon.co.uk Prime Big Deal Days page

For consumer protection advice during sales events, the Citizens Advice – Online Shopping Rights page provides guidance on returns, warranties, and refunds. For price comparison across retailers, Google Shopping – Price Comparison can help verify deals. Expert reviews and consumer advice are available through Which? – Guide to Amazon Prime Day. Official terms for Prime Day 2025 can be found in the Amazon Prime Day 2025 Terms & Conditions.

Summary: When is Prime Day 2025 and What Comes Next?

Amazon Prime Day 2025 in the UK ran from July 8 to July 11, marking the first time the event expanded to four full days. The next major Prime-exclusive sale is Prime Big Deal Days, scheduled for October 7–8, 2025. Black Friday 2025 dates have not been officially confirmed by Amazon, and no information is available yet about Prime Day 2026. For the most up-to-date information, shoppers should check the Prime Day 2025 confirmed dates page or the Amazon sale calendar 2025 UK page.

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