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Ehime, Japan

Ehime Prefecture follows Japan Standard Time, UTC+09:00, all year. It does not use daylight saving time. Matsuyama, Imabari, Niihama, Saijo and the prefecture’s island communities all share one official clock.

Matsuyama, Japan

Friday, 4 September 2026

UTC+9 · Asia/Tokyo

Time and sun data for Matsuyama — the largest city of Ehime

The sun in Matsuyama

Sunrise 05:46 Solar noon 12:10 Sunset 18:34 Daylight 12 h 48 min Night 11 h 12 min Civil twilight 05:20 – 18:59

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Current time in Ehime, Japan

Add nine hours to UTC to find the local time in Ehime. This operation may advance the date, so international arrangements should identify the Japanese calendar day explicitly. No time conversion is needed when travelling from Ehime to another Japanese prefecture.

Ehime’s western location within Japan influences the clock time of sunrise and sunset, but it does not alter the national zone. A device set to JST should remain stable through every season. Ehime lets the evening arrive in its own fashion, though JST still insists on punctuality.

Matsuyama and the prefecture’s other centres

Matsuyama is the prefectural capital and largest urban reference point. Imabari is an important city in the northeast, while Niihama and Saijo are major centres in eastern Ehime. Uwajima serves southern Ehime and is often the more relevant location for plans in that part of the prefecture.

Matsuyama: prefectural capital and primary transport centre. Imabari: a major northeastern city. Niihama: an important city in eastern Ehime. Saijo: a neighbouring eastern centre. Uwajima: the principal city of southern Ehime.

Ferry, railway and bus timetables throughout these cities are expressed in JST. Island travel can require careful attention to connections and weather, but it introduces no change of clock.

Sunrise beside the Seto Inland Sea

A solar time for Matsuyama should not automatically be used for every part of Ehime. The prefecture’s cities and islands occupy different coordinates, and southern locations are separated from the northeastern coast by meaningful distance and varied terrain.

Sunrise and sunset also change with the date. For a ferry departure, coastal walk or mountain outing, consult the relevant day and nearest locality. The published event represents the Sun’s calculated relation to the horizon; nearby mountains or an island skyline may delay direct visibility.

Civil twilight describes the brighter interval before sunrise and after sunset. It can be a better planning marker when the question is whether some natural light will be available. Direct-sun requirements call for sunrise plus an allowance for the actual eastern horizon.

Pick Matsuyama, Imabari, Uwajima or the closest locality. Use the exact date of the planned activity. Confirm that the displayed time zone is JST. Consider mountains, islands and cloud when judging visibility. Keep transport times separate from solar-event estimates.

Questions and answers

Is Ehime in the same time zone as Osaka?
Yes. Ehime and Osaka both use UTC+09:00.
Do Ehime’s islands use a different clock?
No. Island and mainland communities throughout the prefecture follow JST.
Why can visible sunrise occur after the published time?
Mountains, islands, buildings or cloud can block the Sun after its calculated crossing of the standard horizon.
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