What is the time difference between Athens and Sydney?

Sydney is 7 hours ahead of Athens. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.

When is the best time to call Sydney from Athens?

Between 09:00–11:00 in Athens, which is 16:00–18:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.

Does Athens observe daylight saving time?

Yes. Athens runs on UTC+2 in winter and UTC+3 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.

Does Sydney observe daylight saving time?

Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.

If it is midday in Athens, what time is it in Sydney?

It is 19:00 in Sydney, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.

Which time zones do Athens and Sydney use?

Athens uses Europe/Athens, currently UTC+3 (EEST), and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.

Convert Athens time to Sydney time

Sydney is 7 hours ahead of Athens right now, so midday in Athens lands in the evening in Sydney.

Convert a time

From

Date

Time

Converted time

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The converter needs JavaScript to run. Everything below — offsets, daylight saving dates and the hour-by-hour table — is part of the page and works without it.

Hour by hour

Every hour of a day in Athens, and what the clock reads in Sydney at that same moment.

Athens	Sydney
00:00	07:00
01:00	08:00
02:00	09:00
03:00	10:00
04:00	11:00
05:00	12:00
06:00	13:00
07:00	14:00
08:00	15:00
09:00	16:00
10:00	17:00
11:00	18:00
12:00	19:00
13:00	20:00
14:00	21:00
15:00	22:00
16:00	23:00
17:00	00:00next day
18:00	01:00next day
19:00	02:00next day
20:00	03:00next day
21:00	04:00next day
22:00	05:00next day
23:00	06:00next day

Daylight saving time

Both cities change their clocks, but not necessarily on the same date — which is why the difference between them shifts for a few weeks each year.

Athens

Observes daylight saving time

Standard: UTC+2
Daylight: UTC+3
Next change: 2026-10-25 −60m

Sydney

Observes daylight saving time

Standard: UTC+10
Daylight: UTC+11
Next change: 2026-10-04 +60m

When you can actually talk

The window is 2 hours wide — 09:00–11:00 in Athens, 16:00–18:00 in Sydney.

Athens 09:00–11:00Sydney 16:00–18:00

Reference

The underlying data, in case you need to put it in a calendar invitation or a configuration file.

	Athens	Sydney
IANA zone	Europe/Athens	Australia/Sydney
Abbreviation	EEST	AEST
Standard offset	UTC+2	UTC+10
Daylight offset	UTC+3	UTC+11
Clock changes this year	2	2
Country	Greece	Australia

Example, not the current time. Live times appear once the page loads.

Common questions

What is the time difference between Athens and Sydney?: Sydney is 7 hours ahead of Athens. That figure is current — it changes by an hour when either city starts or ends daylight saving, and the exact dates are listed above.
When is the best time to call Sydney from Athens?: Between 09:00–11:00 in Athens, which is 16:00–18:00 in Sydney. That is the only stretch where both cities are inside a 09:00–18:00 day.
Does Athens observe daylight saving time?: Yes. Athens runs on UTC+2 in winter and UTC+3 in summer. The next change is on 2026-10-25, when clocks go back by 60 minutes.
Does Sydney observe daylight saving time?: Yes. Sydney runs on UTC+10 in winter and UTC+11 in summer. The next change is on 2026-10-04, when clocks go forward by 60 minutes.
If it is midday in Athens, what time is it in Sydney?: It is 19:00 in Sydney, on the same calendar date. That holds for the current offsets; it shifts by an hour around the daylight saving dates listed above.
Which time zones do Athens and Sydney use?: Athens uses Europe/Athens, currently UTC+3 (EEST), and Sydney uses Australia/Sydney, currently UTC+10 (AEST). Those identifiers are the ones to use in code — abbreviations are ambiguous and offsets change.