Matsuya Minowacho Store Expands to 24-Hour Operation Just 4 Days After Reopening

On May 26, 2026, at 9:19 AM, store data on Matsuya’s official website updated the operating-hours notation for “Matsuya Minowacho Store (1838)” (947-1 Mikkamachi, Minowa, Kamiina District, Nagano Prefecture; co-located with Matsunoya) from “5:00 AM to 2:00 AM the following day, last order 15 minutes before close” (21-hour operation) to “24-hour operation.” The expansion comes 4 days after the store’s reopening at 10:00 AM on May 22 following renovation into a Matsunoya co-located format.

Change Details

Item	Before	After
Operating Hours	5:00 AM to 2:00 AM the following day, last order 15 minutes before close (21-hour operation)	24-hour operation
Hours Added	—	+3 hours (the late-night 2:00–5:00 AM window newly added to operating hours)
Store Name	Matsuya Minowacho Store (co-located with Matsunoya)	No change
Co-located Brand	Matsunoya	No change

Prior to the change, the store operated 21 hours a day, from 5:00 AM to 2:00 AM the following day, with the 3-hour window from 2:00 AM to 5:00 AM closed. This update newly incorporates that 3-hour window into operating hours, establishing full 24-hour operation.

April 13 – May 26: Timeline from Temporary Closure to Full 24-Hour Operation

Since April, Minowacho Store has gone through a continuous sequence of phases: temporary closure for renovation → conversion to co-location with Matsunoya → reopening → phased expansion of operating hours.

Date	Development
May 11, 2026, 15:00	Enters temporary closure for renovation (accompanying a format conversion from co-location with My Curry Shokudo to co-location with Matsunoya)
May 19, 2026, 14:39	While temporarily closed, operating-hours notation preemptively updated to “5:00 AM to 2:00 AM the following day, last order 15 minutes before close” (21-hour operation)
May 22, 2026, 10:00	Reopens as a store co-located with Matsunoya (starts with 21-hour operation)
May 26, 2026, 9:19 (this report)	Operating hours expanded to 24-hour operation

As of the preemptive update on May 19, the schedule was unified from a weekday 6:00 AM–midnight / weekend-and-holiday 8:00 AM–midnight structure into a uniform 21-hour operation of 5:00 AM to 2:00 AM the following day every day, and just 4 days after reopening it was further expanded to 24-hour operation. This marks a phased expansion timed to an early stabilization of post-renovation operations.

Compared to the Same Pattern at Kiyose Noshio Store on May 21, the Expansion Speed Is Far Faster

We compare the interval from reopening to 24-hour conversion with Matsuya Kiyose Noshio Store (Kiyose City, Tokyo), which most recently underwent the same 21-hour-to-24-hour expansion.

Store	Reopening Date	Date of 24-Hour Conversion	Interval
Matsuya Kiyose Noshio Store (1859)	April 22, 2026	May 21, 2026	29 days later
Matsuya Minowacho Store (this report)	May 22, 2026	May 26, 2026	4 days later

Both stores share the same pattern: after reopening following a format-conversion renovation from co-location with My Curry Shokudo to co-location with Matsunoya, each began operation at reopening with 21-hour operation (“5:00 AM to 2:00 AM the following day, last order 15 minutes before close”) and later expanded to 24-hour operation. However, the interval to 24-hour conversion differs sharply — 29 days for Kiyose Noshio Store versus 4 days for Minowacho Store, a roughly sevenfold difference in speed.

The Trend of Operating-Hours Expansions in May

Lining up Matsuya’s operating-hours expansion moves since the start of May, today’s 24-hour conversion at Minowacho Store is the sixth such move within May.

Date & Time	Store(s) Affected	Details
May 11, 2026	Matsuya Ningyocho Store	Eliminated early-Monday-morning closure, moving to full 24-hour operation
May 15, 2026, 10:02	Matsuya Shin-Koenji Store	Returned to 24-hour operation from 8:00 AM–10:00 PM
May 18, 2026, 9:26	7 stores including Musashimurayama Store and Oyamadai Store	4 stores converted to 24-hour operation, 2 stores extended to longer hours, and 1 store had a separate shortened-hours notation for its Matsunoya co-location removed
May 21, 2026, 17:56	Matsuya Kiyose Noshio Store	Expanded from 5:00 AM–2:00 AM the following day to 24-hour operation
May 25, 2026, 9:44	4 stores including 3 Chiba stores and Kaminoyama Store	All 4 stores expanded to 24-hour operation
May 26, 2026, 9:19 (this report)	Matsuya Minowacho Store	Expanded from 5:00 AM–2:00 AM the following day to 24-hour operation

Coming as a single addition one day after the simultaneous expansion of 4 stores on May 25, the number of stores converting to 24-hour operation (expansion direction) within May reaches a total of approximately 13 stores for the month, including today’s Minowacho Store.