Release rule

How to Book Hirosaku: Reservation Release Day, Phone and Rules (2026)

ひろ作 · Shimbashi, Tokyo · Kaiseki · Lunch & dinner

How to book this house

Phone only (03-3591-0901, Japanese) with no release day; 2026 diners booked about a month ahead and call it moderately hard, lunch hardest. Weekdays only, lunch 11:45–⁠13:00 and dinner 18:00–⁠20:00, cash only.

Next release
No release day — book any time

This house books only by phone, in Japanese. Our Tokyo desk can make the call on release day: ¥12,000 per seat, only if we secure it. Ask the desk →

Where bookings are taken
Phone only
Lunch / dinner
Lunch & dinner
Phone line
03-3591-0901 (Japanese), weekdays around service hours 11:45–13:00 and 18:00–20:00
If a seat comes back

This house takes bookings only by phone, so there is no online vacancy alert.

Allergies or dietary needs? Make a Japanese dining card →

Next release days

No release day — book any time

Last verified September 23, 2026 · checked by our desk October 4, 2026

Source for the booking rule: the booking page (hamoni.jp), read September 23, 2026.

All times are Japan Standard Time (UTC+9).

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When does Hirosaku open its reservation book?

Phone only (03-3591-0901, Japanese) with no release day; 2026 diners booked about a month ahead and call it moderately hard, lunch hardest. Weekdays only, lunch 11:45–⁠13:00 and dinner 18:00–⁠20:00, cash only. All times are Japan Standard Time (UTC+9).

How do I book Hirosaku from abroad?

Hirosaku takes reservations by phone in Japanese only. Phone line: 03-3591-0901 (Japanese), weekdays around service hours 11:45–13:00 and 18:00–20:00. From abroad, either call at those hours or have a Japanese speaker call for you. If you would rather not, our Tokyo desk can request it for you: ¥12,000 per seat, charged only if the table is secured. A free release-date alert emails you the day before, on the morning of release day (08:00 JST) and about 30 minutes before when the opening time is known; houses that open a little every day come in a weekly summary.

What time zone is the release time?

All times are Japan Standard Time (UTC+9). Release days are computed from the house's published rule and re-checked monthly.

More release days in Tokyo

Tokyo: when hard-to-book restaurants open reservations →

Request this table — our Tokyo desk calls in Japanese on release day · ¥12,000 per seat, only if secured →

← All 1,240 houses in the booking calendar

Rules are verified against official notices and platform listings and re-checked monthly. Houses change their systems without warning; treat the calendar as a planning tool. For restaurants in our collection, our desk confirms the specifics for your dates when you request.