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What time is it in Koto-Ku, Tokyo, Japan

This is the current time in Koto-Ku, Tokyo, Japan, shown for the Asia/Tokyo time zone (+9).

Koto-Ku, Japan

1:00:55 PM

Tuesday, 27 October 2026

UTC+9 · Asia/Tokyo

Local time in Koto-Ku

UTC+9 · no daylight saving time

Local time in Koto-Ku, Tokyo.

The sun today

Sunrise 5:58 AM Solar noon 11:26 AM Sunset 4:53 PM Daylight 10 h 55 min Night 13 h 05 min Civil twilight 5:32 AM – 5:19 PM

Weather in Koto-Ku right now

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Weather data by Open-Meteo, updated every 30 minutes.

Koto-Ku and its neighbours

Koto-Ku at 35.6667, 139.8170 with the nearest towns within 4.6 km · open in OpenStreetMap

Postal codes

135-8114 Toyosu — 0.0 km away
135-6090 Toyosu Toyosusentabiru(Chikai.Kaiso — 0.0 km away
135-8137 Toyosu — 0.0 km away
135-6031 Toyosu Toyosusentabiru(31-Kai) — 0.0 km away
100-8666 Etchujima — 0.0 km away
135-6037 Toyosu Toyosusentabiru(37-Kai) — 0.0 km away
135-6034 Toyosu Toyosusentabiru(34-Kai) — 0.0 km away
135-6011 Toyosu Toyosusentabiru(11-Kai) — 0.0 km away
135-8121 Toyosu — 0.0 km away
135-6026 Toyosu Toyosusentabiru(26-Kai) — 0.0 km away
135-6014 Toyosu Toyosusentabiru(14-Kai) — 0.0 km away
135-6027 Toyosu Toyosusentabiru(27-Kai) — 0.0 km away

Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.

Koto-Ku in numbers

Coordinates: 35.6667, 139.8170
Region: Tokyo
Country: Japan, Asia
Capital: Tokyo — 12 km away

Largest cities in Tokyo

Tokyo 9 733 276
Setagaya 940 071
Ōta 748 081
Edogawe 697 932
Adachi 695 043
Itabashi 584 483

Same time zone — Asia/Tokyo

Tokyo Japan
Yokohama Japan
Osaka Japan
Nagoya Japan
Sapporo Japan
Fukuoka Japan

Nearby places

Yumenoshima — 2.2 km
Nihonbashi-Nakasu — 3.0 km
Odawaracho — 3.1 km
Nihonbashi-Hakozakicho — 3.1 km
Nihonbashi-Kakigaracho — 3.3 km
Nihonbashi-Hamacho — 3.6 km

Koto-Ku: clock, sun and surroundings

12 postal codes divide Koto-Ku.

The clock standard in Koto-Ku is Asia/Tokyo, offset by UTC+9. Daylight saving time in use: No.

The horizon brightens over Koto-Ku at 5:58 AM, and the sun sets at 4:53 PM. Daylight runs 10 h 55 min.

Same time, different place: Yumenoshima and Nihonbashi-Nakasu near Koto-Ku.

Questions and answers

Does Koto-Ku use the Asia/Tokyo time zone?: Yes, Koto-Ku uses Asia/Tokyo, with an offset of +9.
Does Koto-Ku go on summer time?: Daylight saving in Koto-Ku: No.
What is the sunrise time for Koto-Ku?: 5:58 AM.