The best time to meet between Seoul and Sydney is 9:00 AM–4:00 PM GMT+9 (10:00 AM–5:00 PM GMT+10), when both cities are within standard working hours.
Plan a meeting →| Detail | Value |
|---|---|
| Time difference | 1h (Sydney is ahead) |
| Seoul 9–5 in Sydney time | 10:00 AM–6:00 PM GMT+10 |
| Sydney 9–5 in Seoul time | 8:00 AM–4:00 PM GMT+9 |
| Overlap window | 9:00 AM–4:00 PM GMT+9 / 10:00 AM–5:00 PM GMT+10 |
| Recommended slots | 9:00 AM GMT+9 = 10:00 AM GMT+10, 12:30 PM GMT+9 = 1:30 PM GMT+10 |
| DST transitions (this year) | Sydney: October 4 / April 5 |
The 1h offset between Seoul and Sydney is not just a number — it reshapes the entire rhythm of collaboration. Sydney clocks out while Seoul is still at lunch. Teams that don't plan this deliberately spend their overlap on firefighting instead of actual work.
The 7h overlap window runs at the edge of both teams' days. For Seoul's side it's a late-morning meeting; for Sydney it's early afternoon. Neither is painful, which is exactly why it works. Anchor your recurring sync here and treat the rest of the day as async territory.
For any recurring sync between Seoul and Sydney, set the calendar invite in one canonical timezone and confirm the other side sees the correct local time. DST transitions can silently shift the effective meeting time by an hour for several weeks without either party noticing until someone is waiting alone on the call.
Add the rest of your team above and the planner scales to everyone at once. A three-city team spanning Seoul, Sydney, and a third timezone often has less overlap than any two-city pair in isolation — surfacing that constraint early prevents scheduling that works on paper but burns people out in practice.
Seoul is UTC+9 and Sydney is UTC+10, a difference of 1h. This gap may shift by 1 hour during DST transitions.
The best meeting time is during the 7h of shared business hours — typically 9:00 AM to 4:00 PM GMT+9.
Yes, partially. Sydney observes daylight saving time; Seoul does not. Sydney's clocks change around October 4 and April 5, shifting the gap between the two cities by 1 hour for part of the year.
Seoul and Sydney share 7h of business-hours overlap (assuming 9 AM–5 PM local time for both).