Denny’s hours

Most Denny's restaurants are open 24 hours a day, seven days a week, including major holidays like Thanksgiving and Christmas Day. A small minority of Denny's locations have specific hours rather than 24/7 (often smaller-market or recently-opened stores). Hours vary by individual store, so check the locator below to verify your nearest Denny's is open 24 hours.

Denny’s operates around 1,500 diner-style restaurants across the United States, founded in Lakewood California in 1953 and known as ‘America’s Diner’ for its 24-hour service at most locations.

This page covers whether Denny’s is open 24/7, what time the small minority of non-24-hour stores close, holiday status (Denny’s stays open on Christmas, Thanksgiving, and other major holidays where most chains close), plus customer service at 1-800-733-6697 and how to find a diner near you.

Two Denny’s-specific things worth knowing: most US Denny’s restaurants are open 24 hours seven days a week (the Original Grand Slam is available all day, all night), and a small fraction of locations have specific hours instead of 24/7 (typically smaller-market or recently-opened stores). Southeastern competitor Waffle House follows an even more uniform 24/7/365 model and is the closest direct sibling to Denny’s in the always-open diner category.

Use the locator below for your specific Denny’s, including 24-hour status verification.

Is Denny’s open today?

Denny’s generally follows the standard weekly schedule below. Hours can vary by location - confirm your specific store via the official locator.

Denny’s weekly hours

Denny’s holiday hours

Is Denny’s open on Saturday?

Saturday hours at most Denny's restaurants are 24 hours, the same as the rest of the week. Saturday late-night and early-morning (11 PM to 4 AM) is one of the busier shifts at Denny's, drawing a mix of late-shift workers, post-bar diners, and travelers. The Original Grand Slam breakfast is available all day and all night. A small minority of Denny's stores aren't 24-hour and have specific Saturday close times.

Is Denny’s open on Sunday?

Sunday hours at most Denny's restaurants are 24 hours, the same as Mon-Sat. Sunday brunch (10 AM to 1 PM) is one of the busier weekend windows. Denny's keeps the same 24-hour pattern on Sunday because the brand identity (America's Diner, Always Open) commits to year-round nonstop operation. A small minority of Denny's stores have specific Sunday hours instead of 24/7.

Find a Denny’s store near me

Hours vary by location, so the most accurate hours for your nearest store are on the official Denny’s store locator. Enter your zip code or city to see the closest stores and their current hours.

Denny’s hours - frequently asked questions

Is Denny's open 24/7?

Most Denny's restaurants are open 24 hours a day, seven days a week. Denny's is one of the few national fast-food and diner chains that maintains the original 24/7 model, marketed as 'America's Diner: Always Open.' A small minority of locations (around 10 to 15 percent) have specific hours rather than running 24/7, often smaller-market or recently-opened stores. The Denny's app and dennys.com locator both show your nearest store's exact 24-hour status.

Is Denny's open on Christmas Day?

Yes. Most Denny's restaurants are open 24 hours on Christmas Day, December 25 2026. Denny's is one of the few national chains that stays open on Christmas (along with IHOP and a small set of other 24/7 diners and convenience-food spots). Christmas Day is one of Denny's busiest days for travelers, lonely diners, and people skipping the home-cooked feast. Hours vary at non-24/7 locations; check the locator.

Is Denny's open on Thanksgiving?

Yes. Most Denny's restaurants are open 24 hours on Thanksgiving Day, November 26 2026. Denny's tradition is staying open every day of the year including Thanksgiving (and they often run a special Turkey & Dressing Dinner promotion). Thanksgiving is a busy day at Denny's for families skipping the home meal and travelers between cities. Hours vary at non-24/7 locations.

Is Denny's open 365 days a year?

Yes, the chain operates 365 days a year. Most individual Denny's restaurants are open all 365 days, including Thanksgiving, Christmas Day, New Year's Eve, New Year's Day, Easter, and every other holiday. Denny's brand identity (America's Diner, Always Open) commits to year-round operation. A small fraction of locations close on specific holidays at franchisee discretion; the locator shows holiday-specific hours per store.

Are all Denny's open 24 hours?

No, not all Denny's are 24/7. Most locations (around 85 to 90 percent) are 24-hour operations, but a growing minority - especially newer locations and smaller-market stores - have specific hours instead. Some Denny's stores in shopping centers or urban areas may close for a few hours overnight (typically 11 PM to 6 AM). The Denny's app filters stores by 24-hour status if you need late-night dining.

What time does Denny's close at the non-24-hour locations?

At the minority of Denny's restaurants that are not 24/7, typical hours are 6 AM to 11 PM seven days a week, with some stores closing as early as 10 PM or as late as midnight. The non-24-hour Denny's stores are concentrated in newer markets, mall-located spots, and a small number of franchisee-operated locations. The Denny's app shows your nearest store's exact open and close hours.

Is Denny's open on Easter Sunday and other holidays?

Yes. Most Denny's restaurants are open 24 hours on Easter Sunday (April 4 2027), Good Friday, Memorial Day (May 25 2026), Independence Day (Saturday July 4 2026), Labor Day (Monday September 7 2026), New Year's Eve, and New Year's Day. Denny's commits to year-round 24/7 operation at most locations regardless of holiday. The locator shows holiday-specific hours per individual store.

What is the Denny's customer service phone number?

Denny's customer service is at 1-800-733-6697, the corporate guest contact line. The line is open Monday through Friday 8 AM to 8 PM Eastern (closed weekends, even though restaurants are 24/7). The number handles app and order issues, Denny's Rewards questions, restaurant feedback, and refund requests. For a specific restaurant question, calling the local store directly is faster - get the number from the Denny's app or dennys.com locator. The corporate office is in Spartanburg South Carolina.

Is Denny's open right now / today?

Most Denny's restaurants are open right now if it's during 24-hour operating times - that means any time of day or night at the majority of locations. The Denny's app and dennys.com locator both show your nearest store's exact current open status in real time. If your nearest Denny's is one of the non-24-hour stores, the locator shows specific open and close times for the day.

Does Denny's have a drive-thru?

No, most Denny's restaurants do not have a drive-thru. Denny's is a sit-down diner-style restaurant where service is at the table. A small number of newer Denny's locations have added drive-thru windows for limited menus, but they are uncommon. For takeout, Denny's offers carryout pickup at the front counter and delivery through DoorDash, Uber Eats, and Grubhub.

How do I find a Denny's near me?

Use the Denny's store locator at dennys.com/locations to search by address, ZIP code, or current location. The locator shows store hours (24-hour status or specific hours), dine-in availability, online ordering options, and any temporary closures. The Denny's app shows real-time order tracking, mobile-order pickup, and Denny's Rewards. The map below shows nearby Denny's restaurants based on your IP address.

Denny’s customer service: 1-800-733-6697 - call to confirm hours or ask questions.

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Last verified: May 2026 against Denny’s's official store locator and press releases.

Disclaimer: we are not connected with Denny’s or any other company. Whathours.com exists to show the working hours of good businesses worldwide.