Athens and Sydney working-hours overlap
On Monday, 28 September 2026, Athens is 7 hours behind Sydney — UTC+03:00 against UTC+10:00. Their working hours overlap for 1 hour that day, between 06:00–07:00 UTC — 09:00–10:00 in Athens and 16:00–17:00 in Sydney. Athens changes clocks on Sunday, 25 October 2026, and the gap between them goes from 8 hours to 9 hours. Sydney changes clocks on Sunday, 4 October 2026, and the gap between them goes from 7 hours to 8 hours.
Every figure on this page describes Monday, 28 September 2026 — a fixed day, not the day you are reading it. Working hours are 09:00–17:00 local time for both cities; change either, or pick another date, in the overlap calculator.
Shared working hours
Everyone is at work between 06:00–07:00 UTC — 1 hour.
| City | Local time | Offset |
|---|---|---|
| Athens | 09:00–10:00 | UTC+03:00 |
| Sydney | 16:00–17:00 | UTC+10:00 |
Each city's working day
| City | Local hours | In UTC | Offset | Next clock change |
|---|---|---|---|---|
| Athens | 09:00–17:00 | 06:00–14:00 UTC | UTC+03:00 | UTC+03:00 → UTC+02:00, 25 Oct 2026 |
| Sydney | 09:00–17:00 | 23:00–07:00 UTC | UTC+10:00 | UTC+10:00 → UTC+11:00, 4 Oct 2026 |
How the shared window moves through the year
Athens and Sydney change clocks on different dates, so the gap between them moves twice a year. Each row is the same pair of working days, sampled once a month, so the window's size and position follow the clock changes described above.
| Month | Shared window | Length |
|---|---|---|
| 2026-10 | No shared hours | — |
| 2026-11 | No shared hours | — |
| 2026-12 | No shared hours | — |
| 2027-01 | No shared hours | — |
| 2027-02 | No shared hours | — |
| 2027-03 | No shared hours | — |
| 2027-04 | 06:00–07:00 UTC | 1 hour |
| 2027-05 | 06:00–07:00 UTC | 1 hour |
| 2027-06 | 06:00–07:00 UTC | 1 hour |
| 2027-07 | 06:00–07:00 UTC | 1 hour |
| 2027-08 | 06:00–07:00 UTC | 1 hour |
| 2027-09 | 06:00–07:00 UTC | 1 hour |
Questions
- What time can Athens and Sydney meet?
- 06:00–07:00 UTC on Monday, 28 September 2026 — 1 hour. In Athens that is 09:00–10:00, and in Sydney it is 16:00–17:00.
- How far apart are Athens and Sydney?
- On Monday, 28 September 2026, Athens is 7 hours behind Sydney — UTC+03:00 against UTC+10:00. Athens changes clocks on Sunday, 25 October 2026, and the gap between them goes from 8 hours to 9 hours. Sydney changes clocks on Sunday, 4 October 2026, and the gap between them goes from 7 hours to 8 hours.
- Does the overlap between Athens and Sydney change through the year?
- The shared window is 06:00–07:00 UTC in the 6 of the twelve months from Monday, 28 September 2026 that have one; 6 have no shared window at all.
Related city pairs
- Honolulu and Athens
- Honolulu and Sydney
- San Francisco and Athens
- San Francisco and Sydney
- Denver and Athens
- Denver and Sydney
Or read how overlap is calculated and the other questions people ask about scheduling across time zones.