TIME

Seoul ↔ Sydney time difference

Choose cities to compare their local times at the same instant.

TIME CALCULATOR

Origin / reference city

Destination / comparison city

Reference time

Choose from 28 reviewed cities. The selected city’s time zone is used, not your device’s time zone.

Is a time difference the same as flight duration?

No. A time difference compares local clocks at the same instant; flight duration is elapsed travel time. The displayed offset can change with date and daylight saving time.

Scope: Site calculations using the selected date and city time zones; not a guarantee of a flight schedule or changes.

Sources & review dates

IANA · Time-zone data basis · 2026-09-22

Can the time difference change on my travel date?

Both UTC offsets are compared at the same instant. Daylight saving can change the difference, so choose a date and time when planning a future trip.

What happens when daylight saving skips or repeats a local time?

A skipped daylight saving time is rejected. For a repeated time, choose its UTC offset. Current time depends on your device clock and browser time-zone data. Use an up-to-date browser.

The Seoul–Sydney comparison uses Asia/Seoul and Australia/Sydney. Do not apply this city comparison to an entire country.

Time-zone mapping reviewed: 2026-09-22 · Source: IANA Time Zone Database

Planning between Seoul and Sydney

Sydney is 2 hours ahead of Seoul in the southern summer and 1 hour ahead in winter. Other parts of Australia do not all share its time zone or daylight saving rules.

These examples describe the time-zone rules for 2027. Enter your actual travel date in the calculator above.

Is a time difference the same as flight duration?

No. A time difference compares local clocks at the same instant; flight duration is elapsed travel time. The displayed offset can change with date and daylight saving time.

Scope: Site calculations using the selected date and city time zones; not a guarantee of a flight schedule or changes.

Sources & review dates

IANA · Time-zone data basis · 2026-09-22

City time comparisons

Seoul ↔ Paris Seoul ↔ Tokyo Seoul ↔ New York Seoul ↔ Los Angeles Seoul ↔ Honolulu Seoul ↔ Sydney

Can the arrival date be earlier than the departure date?

Yes. Local calendar dates may differ while the arrival instant still follows departure. Keep local dates separate from elapsed time.