Time in Ōtsu, Japan

Time zone: JST (UTC/GMT +09:00) — Asia/Tokyo

Ōtsu runs on JST. That places it 9 hours ahead of UTC (UTC+09:00); in a calendar, server config or booking form, select Asia/Tokyo.

No seasonal adjustment applies in Ōtsu — UTC+09:00 is constant, which is worth remembering when a partner city moves its clocks twice a year.

Population: about 343,991 — 49th largest of the 208 Japan cities indexed here.

Live differences from Ōtsu, calculated from each zone's rules as they stand today rather than a fixed table.

Overlap of a normal working day, shown in Ōtsu time — outside these windows one side is off the clock.

No shared working window exists with New York, Los Angeles, London or Sao Paulo, so those calls have to sit outside somebody's normal hours.

Same zone, same time — each of these sits on Asia/Tokyo alongside Ōtsu, including through any clock change.

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