Why We’re Preaching Prime “Time” Not Prime “Day”

Most Amazon sellers are thinking about Prime Day wrong.

The brands winning Prime Day aren't winning on Prime Day. They're winning Prime
Time.

Prime Time isn't a novel idea; it's just a more accurate description of what actually
drives performance.

While most sellers treat Prime Day as a two-day conversion event — ramp budgets
during the traffic spike, capture the spike, move on — the data shows the real
opportunity stretches across six weeks. And most of it happens before the deals even
go live.

Impressions across Amazon start climbing weeks before the event as shoppers enter
research mode.

By Prime Day week, they're running ~56% above baseline — representing 45M+
shoppers browsing outside their normal patterns, open to brands they wouldn't usually
consider. Then the event ends, sales snap back within two weeks, but spillover ad
sales the week after run +33% above baseline as newly exposed shoppers keep
converting.

The two days everyone is fighting over are actually the least interesting part of
the window.

The shopper behavior that makes this matter

82% of Prime Day shoppers research products in advance.

They've largely decided what they want before they open the app on Prime Day
morning. The brands that win are the ones that influenced that decision prior, not the
ones who showed up with bigger budgets on Prime Day.

There's also a category discovery dynamic worth understanding. In the weeks before
major shopping events, search behavior shifts toward exploratory, generic queries.

The #1 Amazon search term the week of Father's Day 2025 wasn't a product, it
was "fathers day gifts." Prime Day triggers the same behavior at 10x the scale.

Shoppers leave their usual aisle. They're new to your category and open to being
educated. That's a fundamentally different opportunity than the conversion spike most
brands are optimizing for.

If You’re Not Using Amazon Marketing Cloud, You’re Behind

The reason most brands can't execute the full Prime “Time” window isn't strategy — it's
data. Standard Amazon search ad targeting tells you what someone bought. Amazon
Marketing Cloud (AMC) tells you how they got there with real behavioral signals.

That distinction matters a lot for Prime Day planning. Using AMC, you can see which ad
combinations are actually producing new-to-brand buyers (vs. just re-converting existing customers), which audience segments convert at rates well above your account
average, and how long the path from first impression to purchase actually takes.

And with the right partner, you can even build hyper-specific audiences and target them
with both Sponsored Ads and Amazon DSP through one holistic full-funnel strategy.
And that last note around DSP is actually underrated. If your typical conversion path is
7–10 days, and you're not running DSP until Prime Day week, you're starting too late by
definition.

AMC also makes the post-event window far more valuable. Your product listing and
brands tore are seeing a massive increase in new traffic on Prime Day. Not all of it will
convert. Without AMC, "remarket to non-converters" is a vague idea.

With AMC, you can see exactly who was exposed, who clicked but didn't buy, and what
they looked at to build audience segments around that behavior to activate in the weeks
after — further extending “Prime Time” far past your competitors.

The brands consistently generating 40–80%+ new-to-brand rates during Prime Day
aren't doing something exotic. They're using data that's available via AMC and using it
earlier and more deliberately than everyone else.

The framework that consistently outperforms

• 6 weeks before: Set your AMC baseline, build custom audience segments from
  existing customer data, confirm inventory.

• 3 weeks before: DSP awareness and consideration campaigns live. You're
  warming retargeting pools before CPCs spike — and reaching new-to-category
  shoppers before they default to the familiar name.

• Prime Day: Search, DSP, and retargeting fire together to convert demand you
  already created. You're not fighting cold traffic.

• 2–4 weeks after: Remarket to non-converters. Measure NTB lift. Build repeat
  purchase sequences. This is where the ROI on your pre-event spend actually
  shows up.

What this looks like in practice

Mosquito-patch brand Quitch is a good example of the pre-event window paying off.
AMC analysis revealed shoppers were actively searching earlier than Quitch's historical
data suggested — meaning the brand had been consistently late to its own peak
demand. By moving DSP awareness campaigns earlier and building AMC-informed
audience segments before CPCs spiked, they captured high-intent shoppers their
competitors were still waiting on.

The results? 333% YoY sales growth. 392% growth in ad-attributed sales. 10%
ROAS improvement while scaling aggressively.

If you're already thinking in terms of the full Prime Time window, great—you're ahead of
most sellers. The brands that win in Q3 usually started building their audience
infrastructure in May.

Quartile helps brands execute across this full window — AMC audience data, DSP, and
AI-driven optimization working together.

We're offering a free advertising audit for sellers coming from this newsletter, and 50% off for two months for anyone who decides to move forward.