American Restaurant – illustrative photo

American RestaurantPortsmouth, NH

Gilley's Diner

Closed · opens 9:00 PM

Directions Call

Illustrative photo

Opening hours

Closed · opens 9:00 PM

Weekly opening hours of Gilley's Diner
Monday	Closed
Tuesday	12:00 PM – 6:00 PM
Wednesday	12:00 PM – 6:00 PM
Thursday	12:00 PM – 6:00 PM
Friday	9:00 PM – 1:00 AM
Saturday	9:00 PM – 1:00 AM
Sunday	Closed

Local time in Portsmouth: 4:24 AM (EDT). Holiday hours may differ – call (603) 431-6343 to confirm.

Location & directions

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175 Fleet Street
Portsmouth, NH 03801

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About Gilley's Diner

Gilley's Diner is an American restaurant located at 175 Fleet Street in Portsmouth, New Hampshire. It is one of 79 places to eat and drink we list in Portsmouth.

Gilley's Diner is open 5 days a week, usually 12:00 PM – 6:00 PM (closed Monday and Sunday). Night owls can stop by until 1:00 AM on Friday and Saturday.

Available service options are dine-in. On the menu: burgers.

Phone: (603) 431-6343.

Quick facts

Category: American Restaurant · Burger
Address: 175 Fleet Street, Portsmouth, NH 03801
Phone: (603) 431-6343
Hours: Open 5 days a week, usually 12:00 PM – 6:00 PM (closed Monday and Sunday)
Listing updated: September 2026 · Suggest an edit

Popular times (estimated)

6AM

9AM

12PM

3PM

6PM

9PM

Estimated from typical visit patterns for American restaurants and this venue’s opening hours – not live data.

Features & amenities

Service options

Dine-in

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Frequently asked questions

What are Gilley's Diner's opening hours?

Open 5 days a week, usually 12:00 PM – 6:00 PM (closed Monday and Sunday). Monday: Closed; Tuesday: 12:00 PM – 6:00 PM; Wednesday: 12:00 PM – 6:00 PM; Thursday: 12:00 PM – 6:00 PM; Friday: 9:00 PM – 1:00 AM; Saturday: 9:00 PM – 1:00 AM; Sunday: Closed.

Is Gilley's Diner open on Sunday?

No, Gilley's Diner is closed on Sundays.

Where is Gilley's Diner located?

Gilley's Diner is located at 175 Fleet Street, Portsmouth, NH 03801.

What is the phone number of Gilley's Diner?

You can call Gilley's Diner at (603) 431-6343.

Does Gilley's Diner offer delivery or takeout?

Delivery is not listed for Gilley's Diner. Listed service options: dine-in.