Amazon stopped offering two-day handling as a default in the autumn of 2025, and has spent the ten months since tightening every clock connected to it. From 30 September its sellers could no longer keep a two-day dispatch window as an account-level setting; the option narrowed to one day, or none, with two days available only as a request entered product by product. Read that as the delivery race loosening and you have read it backwards. Amazon has not stepped away from the speed it forced on the market; it reset the clock it set, and has kept resetting it since.

The word optional is doing the same quiet work it did the last time Amazon tried this. Two-day handling survives, but only for the seller who elects it item by item; Amazon’s own guidance has told sellers before that they may “change this back to two days at the SKU level” if they refuse the faster default. A merchant with ten thousand listings does not reset them one by one, and Amazon has never pretended otherwise. The default is the policy, and the policy has moved twice in under a year.

Amazon’s defence is that the buffer was fiction. More than 87% of American seller-fulfilled orders already leave within a day, it argues, so a two-day promise only makes a prompt seller look slow. Turn the figure over. It measures a market that absorbed the cost of speed years ago, on Amazon’s terms, and never stopped paying — though the company hedges its own error: correct a flagged listing and the seller earns a hundred and eighty days of shipping-rate protection, a courtesy owed to a mistake Amazon has just admitted it might make.

Nor may a seller overstate his speed and quietly keep the cushion. Since 29 June his stated handling time must match the speed at which the goods actually leave, measured product by product across a rolling month, and padding is now flagged rather than forgiven. Amazon’s preferred remedy is to take the setting out of the seller’s hands and derive it from the shipping record itself. The buffer changes hands. What the seller used to set, Amazon now sets for him.

Amazon answered any doubt about direction a week later. On 6 July it raised the delivery-speed bar for Seller Fulfilled Prime. The share of Prime shoppers who must be shown a next-day promise on a standard item rose from 30% to 40%, the two-day share from 70% to 75% — the steepest upward revision since the programme reopened to new sellers in 2023. A company retreating from speed does not raise the price of it in the same fortnight.

For its fastest sellers the standard had already moved past a day. From 27 October Amazon began pushing selected top performers from one-day to same-day handling: orders in before eleven, out the same day. One day is merely where the slower are still permitted to pause.

To call the slower setting optional is to issue an order and expect to be thanked for it.

Two-day delivery was Amazon’s standard before it was the industry’s, the deadline it taught a generation of retailers to fear missing. Every rival who promised two days did so because Amazon had made two days the meaning of fast. The company says its aim is faster delivery, and on its own terms it is telling the truth. Two decades on, it has turned that same standard into a thing its sellers must request by name, one item at a time. The option remains. The choice was never his.