Live · calculated from the IANA time-zone database

Time difference between Sydney and Istanbul

Short answer

Istanbul is 7 hours behind Sydney. Right now it is 22:34 in Sydney (GMT+10, UTC+10) and 15:34 in Istanbul (GMT+3, UTC+3).

Right now

Sydney · Australia

22:34

Tuesday, September 15, 2026

Australian Eastern Standard Time · GMT+10 · UTC+10

Istanbul · Turkey

15:34

Tuesday, September 15, 2026

Türkiye Standard Time · GMT+3 · UTC+3

Times at the moment this page was generated. Reload for a fresh reading.

Does the difference between Sydney and Istanbul change during the year?

Yes. For 183 days of 2026 the difference is 8 hours, but it moves whenever Sydney or Istanbul enters or leaves daylight saving time. Here is the full 2026 calendar (dates in UTC):

From	Until	Istanbul vs Sydney
January 1	April 4	−8 h
April 4	October 3	−7 h
October 3	December 31	−8 h

The highlighted row is the current period. Every date comes from each zone's official rules, not from a hand-typed table.

Best time to call Istanbul from Sydney (and vice versa)

The window in which both cities are inside their 9:00–17:00 working day runs from 16:00 to 17:00 in Sydney, which is 09:00 to 10:00 in Istanbul: 1 hour of overlap per day. For a call that disturbs nobody, aim for the middle of that window.

Outside that window, the practical rule: mornings in Sydney are afternoons in Istanbul. Avoid any hour that falls before 8:00 or after 21:00 in either city.

Sydney to Istanbul conversion table

Each Sydney hour and its equivalent in Istanbul today. Rows shaded green are working hours (9:00–17:00) in both cities at once.

Sydney time · Tue, Sep 15	Istanbul time
00:00	17:00previous day
01:00	18:00previous day
02:00	19:00previous day
03:00	20:00previous day
04:00	21:00previous day
05:00	22:00previous day
06:00	23:00previous day
07:00	00:00
08:00	01:00
09:00	02:00
10:00	03:00
11:00	04:00
12:00	05:00
13:00	06:00
14:00	07:00
15:00	08:00
16:00	09:00
17:00	10:00
18:00	11:00
19:00	12:00
20:00	13:00
21:00	14:00
22:00	15:00
23:00	16:00

Looking for it the other way round? This page covers both directions: Istanbul to Sydney is the same difference with the sign flipped.

The two time zones

Sydney — Australia/Sydney

Sydney uses Australian Eastern Time: UTC+10 in winter (AEST) and UTC+11 in summer (AEDT), from the first Sunday of October to the first Sunday of April — opposite to the northern hemisphere.

Istanbul — Europe/Istanbul

Istanbul has stayed on UTC+3 all year since 2016, so it matches Moscow and Riyadh and is 2 hours ahead of Central Europe in winter but only 1 in summer.

Frequently asked questions

How many hours difference between Sydney and Istanbul?

Istanbul is 7 hours behind Sydney. For most of the year (183 days) the difference is 8 hours; it shifts during the weeks when one of the two cities enters or leaves daylight saving time.

When it is 12:00 noon in Sydney, what time is it in Istanbul?

05:00 in Istanbul (at today's difference of 7 hours).

What is the best time for a meeting between Sydney and Istanbul?

Between 16:00 and 17:00 in Sydney, which is 09:00–10:00 in Istanbul: 1 hour of overlap inside both cities' 9:00–17:00 working day.

Do Sydney and Istanbul observe daylight saving time?

Sydney: yes. Istanbul: no. Because only one of them changes its clocks, the difference moves by one hour twice a year.

What time zone is Sydney in? And Istanbul?

Sydney: Australian Eastern Standard Time (Australia/Sydney, UTC+10). Istanbul: Türkiye Standard Time (Europe/Istanbul, UTC+3).

Tools

Meeting grid — add both cities and click a slot

Time zone converter — any city, any time

Working hours overlap calculator

Daylight saving time 2027 — all dates