What Time Does USPS Stop Delivering? Hours by Day, Weekend & Holiday Rules (2026)

USPS targets 5:00 PM local time as the end of the delivery day, Monday through Saturday — but 5:00 PM is a goal, not a guarantee. Carriers finish their assigned route regardless of the clock, so packages routinely arrive until about 8:00 PM, and later during the December peak. The only USPS service with a guaranteed delivery time is Priority Mail Express, which USPS commits to deliver by 6:00 PM with a money-back guarantee.

If your tracking says Out for Delivery, the practical answer is: expect it any time before 8:00 PM that day. Below are USPS delivery hours by day, the Saturday, Sunday and federal-holiday rules, the 2026 service standards by mail class, and what all of it means if you are the brand shipping the package rather than the person waiting for it.

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Key takeaways

• Target end time: 5:00 PM local, Monday–Saturday. Not guaranteed.
• Realistic end time: up to about 8:00 PM on a normal day; later in late November and December.
• Only guaranteed service: Priority Mail Express — by 6:00 PM, money-back guarantee.
• Sunday: no regular mail. Priority Mail Express delivers 7 days a week, and USPS delivers parcels for some commercial partners on Sundays in select markets.
• Federal holidays: no regular mail, post offices closed. Priority Mail Express still moves.
• Weekends and holidays are not counted in a service standard's expected delivery window.

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What time does USPS stop delivering each day?

USPS aims to complete residential and business delivery by 5:00 PM local time, with routes typically starting around 8:00 AM. That is an operational target, not a service commitment. A carrier who is behind because of package volume, a vacant adjacent route, weather or traffic will keep delivering past 5:00 PM rather than return undelivered mail to the station.

In practice that produces the following windows:

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Is the mail running today?

Yes, on any weekday or Saturday that is not a federal holiday. USPS delivers regular mail and packages six days a week. The only days regular mail does not run are Sundays and the eleven federal holidays.

If you are checking because a delivery has not shown up yet, the more useful question is usually not whether the mail is running but whether your carrier has finished the route. Tracking that reads Out for Delivery means the item is on a vehicle and will be attempted that day — most often well after the 5:00 PM target.

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Does USPS deliver on Saturday?

Yes. Saturday is a normal, full USPS delivery day for every mail class — letters, flats, Ground Advantage, Priority Mail and Priority Mail Express. This is one of the clearest differences between USPS and the private carriers, where Saturday residential delivery is either a surcharged add-on or limited to specific services.

Saturday deliveries often land later in the day than weekday deliveries, because Saturday routes are more frequently combined or covered by a substitute carrier.

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Does USPS deliver on Sunday?

There is no regular Sunday mail delivery. Two exceptions move packages on Sundays:

• Priority Mail Express. USPS delivers Priority Mail Express seven days a week, 365 days a year, to most U.S. addresses. Sunday and holiday delivery is available in many markets for an additional premium fee paid at the time of mailing.
• Commercial parcel agreements. USPS runs Sunday parcel delivery in selected markets for certain high-volume commercial shippers. Whether your package qualifies depends on the shipper's contract, not on anything you can select at checkout.

If a tracking page shows a Sunday delivery date for an ordinary Ground Advantage or Priority Mail parcel, treat it as an estimate that will most likely resolve to Monday.

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Does USPS deliver on federal holidays?

No. On federal holidays, post offices are closed, retail windows are shut, and regular mail and package delivery is suspended. Priority Mail Express is the exception and is still delivered.

The remaining 2026 and early-2027 federal holidays affecting delivery:

Note that both Christmas Day 2026 and New Year's Day 2027 fall on a Friday, which creates two consecutive three-day gaps in regular delivery at the end of the year. If you are planning a Q4 shipping calendar, those two Fridays are the ones to build around — see our 2026 holiday fulfillment guide for the full peak-season timeline.

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How do weekends and holidays affect the expected delivery date?

USPS does not count Sundays or holidays inside a service standard's transit window. USPS gives this example on its own service standards page: an item with a 3-day service standard sent on a Friday is expected Monday, but the same item sent on a Saturday is expected Wednesday, because the intervening Sunday is skipped.

This is the single most common source of "my package is late" complaints that are not actually late. A Saturday-entered parcel effectively loses a day.

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USPS service standards by mail class (2026)

Delivery speed depends on the class, and USPS restructured several of these standards in 2025–2026. Current published standards:

Two changes are worth knowing if you shipped with USPS before 2026. First, USPS now publishes Ground Advantage as two separate standards — under 1 lb and 1–70 lbs — rather than one. Second, USPS added Priority Mail Next Day, a next-day option that USPS says reaches more than 72 million business and residential customers, available in select ZIP Codes and without a money-back guarantee. You can check both the eligible markets and your own lane on the USPS Transit Time Map. To see what each service costs for a specific package, try our free USPS shipping cost calculator.

Separately, USPS extended transit by roughly one day on some lanes where the shipment originates more than 50 miles from its origin Regional Processing and Distribution Center. If your 3PL sits far from an RPDC, that shows up as a slower published standard on the same service you used last year — one of several reasons where your inventory sits changes your delivery promise more than which service you buy.

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How late does USPS deliver during the holidays?

From roughly Thanksgiving through Christmas, USPS adds delivery hours, runs Sunday parcel delivery in more markets, and keeps carriers out later. Deliveries past 8:00 PM become common rather than exceptional in the final two weeks before Christmas.

For a brand, the operational implication is not that packages arrive late in the evening — it is that the variance widens. A lane that reliably delivered in three days in October may deliver in three to six days in December. Building the buffer into the delivery date you show at checkout is more effective than buying a faster service. Our guide to accurate estimated delivery dates covers how to set those windows.

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Why is my USPS package late?

The most common causes, roughly in order of frequency:

• The delivery date was an estimate, not a promise. Only Priority Mail Express carries a guarantee.
• A weekend or holiday was in the transit window and was not counted.
• Route coverage. A route covered by a substitute carrier runs later and occasionally spills to the next day.
• Processing volume. Sorting delays at an RPDC push an entire day's volume forward.
• Address problems. An incomplete or unverified address triggers a delivery exception or a return to sender — the single largest category of preventable failure, and one you control. See address validation and undeliverable packages.

If tracking has not updated in more than 24 hours on a domestic parcel, that is the point to open a USPS service request rather than keep waiting.

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What does the "Sorry We Missed You" slip mean?

USPS leaves a PS Form 3849 — the "Sorry We Missed You" slip — when an item requires a signature, will not fit the receptacle, or has no secure place to be left. The item goes back to the local post office. The slip explains how to schedule a redelivery online, pick the item up at the station, or authorize release without a signature.

USPS generally holds the item for a limited period before returning it to sender. For ecommerce brands, each of those returns is a reshipment cost plus a customer-service contact, which is why signature-required is worth reserving for genuinely high-value orders — see how that math plays out in reverse logistics costs.

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What are USPS post office hours?

Most retail post offices open between 8:00 and 9:00 AM and close between 4:30 and 6:00 PM on weekdays, with shorter Saturday hours and closure on Sundays and federal holidays. Hours vary significantly by branch, so check your specific location on the USPS location finder.

More relevant to a shipper than lobby hours is the last collection time posted at the branch or on the collection box. A package handed over after the last collection is dispatched the following business day, which quietly costs a day of transit. If you are self-shipping, that cutoff — not the store's closing time — is your real ship-by deadline.

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What USPS delivery hours mean if you are the one shipping

For a consumer, USPS delivery hours are a matter of patience. For a brand, they are a promise-setting problem. Three things follow directly from the rules above:

• Do not promise a delivery time of day. Outside Priority Mail Express, USPS makes no commitment about the hour. Promising "by 5 PM" creates tickets you cannot resolve.
• Count business days the way USPS counts them. Sundays and the eleven federal holidays are skipped. A Saturday-entered order is effectively a Monday order for transit purposes.
• Your carrier cutoff is upstream of the carrier. The deadline that decides whether an order ships today is your warehouse's pick-and-pack cutoff, not USPS's collection time. Our breakdown of 3PL order cutoff times explains how that deadline is set.

At Atomix, orders that clear the cutoff are picked, packed and tendered the same business day, which is the only part of the timeline a brand actually controls. Everything after the carrier scan is governed by the standards above. If you want to see how same-day dispatch changes your delivery promise, compare your current numbers against our order fulfillment pricing or review how our fulfillment model works.

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Frequently asked questions about USPS delivery times

What time does USPS stop delivering?

USPS targets 5:00 PM local time as the end of the delivery day, but that is a goal rather than a guarantee. Carriers complete their route regardless of the clock, so deliveries commonly continue until about 8:00 PM and run later during the November–December peak.

Is the mail running today?

Yes on any weekday or Saturday that is not a federal holiday. USPS delivers regular mail six days a week. There is no regular Sunday delivery, and post offices are closed on the eleven federal holidays.

Does USPS deliver on Saturday?

Yes. Saturday is a full USPS delivery day for all mail classes, including Ground Advantage, Priority Mail and Priority Mail Express. Saturday deliveries often arrive later in the day because routes are more likely to be combined or covered by a substitute carrier.

Does USPS deliver on Sunday?

There is no regular Sunday mail. Priority Mail Express is delivered seven days a week, with Sunday and holiday delivery available in many markets for an additional premium fee. USPS also delivers parcels on Sundays in selected markets under commercial agreements with certain high-volume shippers.

How late does USPS deliver?

Most deliveries finish by about 8:00 PM on a normal day. During the December peak, deliveries past 8:00 PM are common. Priority Mail Express is the only service with a committed time — by 6:00 PM, with a money-back guarantee.

Does USPS deliver on federal holidays?

No. Post offices close and regular mail and package delivery is suspended on federal holidays. Priority Mail Express is still delivered. The remaining holidays this season are Veterans Day (November 11), Thanksgiving (November 26), Christmas Day (December 25), New Year's Day (January 1, 2027) and Martin Luther King Jr. Day (January 18, 2027).

Do weekends count toward the USPS delivery estimate?

No. USPS does not count Sundays or federal holidays inside a service standard's transit window. USPS's own example: an item with a 3-day standard sent Friday is expected Monday, while the same item sent Saturday is expected Wednesday.

What does "Out for Delivery" mean on USPS tracking?

It means the item is loaded on a delivery vehicle and an attempt will be made that day. It does not indicate a time. Expect the item any time before roughly 8:00 PM.

How long does USPS Ground Advantage take?

USPS publishes a 2–5 business day standard for Ground Advantage, listed separately for packages under 1 lb and packages from 1 to 70 lbs. Lanes originating more than 50 miles from the origin Regional Processing and Distribution Center may carry an additional day.

Which USPS service has a guaranteed delivery time?

Only Priority Mail Express. USPS commits to delivery by 6:00 PM and refunds postage — and the Sunday or holiday premium fee if purchased — when the item is not delivered by the guaranteed date and time specified at mailing. Ground Advantage, Priority Mail and Priority Mail Next Day are estimates with no guarantee.

My USPS package has not moved in two days. What should I do?

If a domestic parcel shows no tracking movement for more than 24 hours, open a service request with USPS rather than continue waiting. If you are the shipper, verify the delivery address first — an unverified address is the most common cause of a stalled or returned parcel.

Can I get USPS to deliver at a specific time?

No. USPS does not offer time-of-day delivery selection for standard services. The closest option is Priority Mail Express, which commits to delivery by 6:00 PM. For recipients, USPS Informed Delivery and package intercept give visibility and redirection but not a delivery time.