Union Square Retro Diner Open All Night: Pinecrest Diner

Pinecrest Diner has been at 401 Geary Street, San Francisco, CA 94102, since 1969, and on Wednesday through Saturday it never closes. The official site lists 24-hour service on those four days and 7 am to 11 pm on Sunday, Monday and Tuesday. Breakfast is served around the clock, and the restaurant sits steps from Union Square, which makes it the retro diner downtown visitors find after a show or a late flight.

The diner's own site says it has been a gathering spot since it opened in 1969, and it describes itself as located just steps from Union Square. That longevity matters in a district where rents push out independent restaurants every year. Pinecrest has outlasted department stores and hotel lobbies around it, and it still runs the kind of menu that was standard downtown half a century ago, with eggs, hash browns, burgers and steaks on one laminated card.

Inside, the site points to cozy booths, retro decor and warm lighting, and that is an accurate picture. This is not a neon theme restaurant built to look old. It is an old diner that never got around to a redesign, and the booths along the windows are the seats to want if you like watching Geary Street traffic and theater crowds go by.

The headline 24-hour promise comes with an asterisk on the official site, which notes that the diner is slowly moving back to its normal hours after the pandemic. Right now that means all-night service from Wednesday morning through Saturday night, and a 7 am opening with an 11 pm close on Sunday, Monday and Tuesday. Plan any 2 am pancake run for Wednesday, Thursday, Friday or Saturday.

Those overnight hours are why the room works for so many people. After 10 pm the booths fill with audiences from the theaters on Geary Street, hotel workers ending a shift, and travelers whose body clocks are still in another time zone. Weekend brunch is the busiest stretch, when Union Square shoppers and hotel guests line up at the door, so a weekday morning or a late weeknight is the easier time to walk straight in.

The menu header states it plainly: breakfast is served 24 hours. The Pinecrest Special is the plate that defines the place, with two eggs, two sausages, two strips of bacon and a choice of two pancakes or French toast. It is a lot of food, and it is the order to share if you also want to try something from the grill side of the menu.

Two more breakfast plates carry the diner's personality. Joe's Special, the San Francisco scramble of eggs, ground beef and spinach, sits on the regular breakfast card, and it is the local order that out-of-town visitors rarely know to ask for. The Hang Over is named for exactly the customer you would expect at 3 am. Huevos rancheros cover anyone who wants salsa with their eggs.

From the lunch and dinner side, the Pinecrest Burger and the Code Blue Burger are the two house burgers. The Ballpark Steak is an 11-ounce New York steak served with Gilroy garlic fries, a nod to the fries sold at Giants games across town. A Reuben and a tuna melt round out the sandwiches. The tuna melt is $17.95 on the current menu, which tells you to budget roughly $20 a person before drinks and tip.

Here is the honest take. Pinecrest is about the hours and the setting rather than the cooking, and the grill does diner standards well without surprises. Skip the steak unless you are very hungry at midnight, since a steakhouse is a better use of that money. Order breakfast instead, whatever the clock says, because eggs, hash browns and pancakes are what this kitchen turns out fastest.

There is no booking system on the official site, so seating is first come, first served. If the weekend brunch wait stretches past 30 minutes, walk two blocks to Sears Fine Food on Powell Street, the 1938 pink dining room known for its plates of 18 small Swedish pancakes, which takes online table bookings. Late at night, the wait is short or nonexistent, and a single diner can usually get a counter seat or a two-top within minutes.

Downtown, plan your route after dark. Geary Street around Union Square is busy until the theaters let out, and cabs and rideshares pick up easily outside the diner. Powell Street station for BART and Muni Metro is about four blocks away at Market Street, and the 38-Geary bus line runs along Geary toward the Richmond District through the night.

Pinecrest's neighbors are the reason it stays busy after dark. The American Conservatory Theater's Toni Rembe Theater and the Curran sit on the same stretch of Geary Street, so a late show often ends with half the audience heading for the same booths. Arrive before the final curtain if you want a window seat on a big show night.

By day, Union Square is a two-block walk east, with the cable car turnaround at Powell and Market a few minutes beyond. Maiden Lane, the pedestrian alley off the square, is a quiet detour lined with boutiques and the only Frank Lloyd Wright building in San Francisco. Walk it before breakfast and come back hungry. Further up the hill, the Powell-Hyde cable car climbs toward Nob Hill and Russian Hill, and a ride to the top and back makes a cheap sightseeing loop before a late plate of eggs on Geary Street.

Pinecrest Diner is at 401 Geary Street, San Francisco, CA 94102, near Union Square. Official hours are 7 am to 11 pm on Monday and Tuesday, 24 hours from Wednesday through Saturday, and 7 am to 11 pm on Sunday. Breakfast is served at all hours. The tuna melt costs $17.95. Seating is first come, first served, with booths and a counter.