Matsuya Expands Operating Hours at Three Chiba Stores — Asahi, Sawara, and Yachimata — All at Once

On June 4, 2026, at 9:46 AM, store data on Matsuya’s official website was updated all at once for the operating-hours listings of three stores in Chiba Prefecture. Asahi Store (0914) moved from “6:00 to 24:00” (18-hour operation) to 24-hour operation, newly incorporating late-night hours; Sawara Store (0989) moved from “8:00 to 24:00” (16-hour operation) to 24-hour operation, likewise newly incorporating late-night hours; and Yachimata Store (1790) removed the drive-through time-limit note “8:00 to 22:00, last order 15 minutes before close,” bringing the listed hours for all lanes into alignment at 24 hours.

Changes at the Three Stores

Store	Location	Before	After	Extension
Asahi Store (0914)	1131-1 Ni, Asahi City, Chiba Prefecture	6:00 to 24:00 (18-hour operation)	24-hour operation	+6 hours (newly added late-night hours from 0:00 to 6:00)
Sawara Store (0989)	1-13-10 Kita, Katori City, Chiba Prefecture	8:00 to 24:00 (16-hour operation)	24-hour operation	+8 hours (newly added late-night/early-morning hours from 0:00 to 8:00)
Yachimata Store (1790)	16-7 Chuo, Yachimata City, Chiba Prefecture	24-hour operation (drive-through 8:00 to 22:00, last order 15 minutes before close)	24-hour operation (drive-through time-limit note removed)	No change to the store itself; the drive-through effectively gains +10 hours on paper

Asahi Store and Sawara Store saw a pure expansion of the store’s own operating-hours frame, while Yachimata Store — already a 24-hour store — simply had the remaining time-limit note on its drive-through lane removed, bringing all lanes into alignment at 24-hour listings. The two changes differ in nature.

Three Roadside Stores in Northeastern and Central Chiba Move Together into Late-Night Hours

The three stores sit along the roadside corridor stretching from northeastern to central Chiba Prefecture: Asahi City lies in the Toso area along the Kujukuri Beach coastline, Katori City lies in the Suigo (water town) area of the lower Tone River basin, and Yachimata City lies inland, known as a peanut-growing region. All are provincial towns to the northeast or east of the prefectural capital, Chiba City, forming a cluster of suburban stores along the JR Narita Line, Togane Line, and Sobu Main Line. With all three stores’ listed hours switching to 24-hour operation at the same time, the number of late-night Matsuya access points in eastern Chiba has grown.

Part of the Ongoing Trend of Operating-Hour Expansions Since May

Since May, Matsuya’s moves toward expanding operating hours have occurred intermittently, centered on Monday mornings and Monday afternoons. This latest update is a Chiba-concentrated update on a Thursday morning.

Date/Time	Target	Details
May 18, 2026, 9:26 AM (Monday morning)	7 stores	4 stores switched to 24-hour operation, 2 stores extended to longer hours, and more
May 25, 2026, 9:44 AM (Monday morning)	3 Chiba Prefecture stores + 1 Yamagata Prefecture store	4 stores in total extended from 23-hour to 24-hour operation, and more
June 1, 2026, 12:24 PM (Monday afternoon)	16 stores	Operating hours expanded all at once
June 4, 2026, 9:46 AM (this update, Thursday morning)	3 Chiba Prefecture stores	Asahi Store and Sawara Store expanded significantly; Yachimata Store had its drive-through note removed

This marks the second “Chiba-concentrated simultaneous expansion,” following the one on Monday morning, May 25. That update covered three stores in the prefecture’s northwest (Matsudo City and Abiko City) — Kitakogane Store, Chiba Abiko Store, and Matsudo Matsuhidai Store — whereas this update covers three stores in the Toso and inland areas — Asahi City, Katori City, and Yachimata City. This forms a pattern of simultaneous expansions proceeding in parallel within Chiba Prefecture roughly every 10 days, each time in a different area and a different pattern.