What time is it in Sydney when it's 9 AM in Perth?

11:00 AM — as of 3 October 2026. Sydney is 2 hours ahead of Perth.

Does the time difference between Perth and Sydney change?

Yes. In 2026 it's 3 hours or 2 hours, depending on the date, because only Sydney changes its clocks.

What's the best time for a call between Perth and Sydney?

Between 09:00 and 14:00 Perth time, when both cities are in working hours (09:00–17:00).

What time zones are Perth and Sydney in?

Perth uses Australia/Perth (UTC+8 today); Sydney uses Australia/Sydney (UTC+10 today).

Time difference between Perth and Sydney

Sydney is 2 hours ahead of Perth. When it's 9:00 in Perth, it's 11:00 in Sydney.

From

Sydney is 2 hours ahead of Perth.

On Saturday, 3 October 2026, 09:00 in Perth is 11:00 in Sydney. Perth is UTC+8; Sydney is UTC+10.

The gap through 2026

1 Jan – 4 AprSydney is 3 hours ahead of Perth.
4 Apr – 3 OctSydney is 2 hours ahead of Perth.
3 Oct – 31 DecSydney is 3 hours ahead of Perth.

Sydney moves its clocks back on 4 April (UTC+11 → UTC+10).
Sydney moves its clocks forward on 3 October (UTC+10 → UTC+11).

Perth to Sydney, hour by hour

On Monday 5 October.

Perth	Sydney
07:00 Early morning	10:00 Working hours
08:00 Early morning	11:00 Working hours
09:00 Working hours	12:00 Working hours
10:00 Working hours	13:00 Working hours
11:00 Working hours	14:00 Working hours
12:00 Working hours	15:00 Working hours
13:00 Working hours	16:00 Working hours
14:00 Working hours	17:00 Evening
15:00 Working hours	18:00 Evening
16:00 Working hours	19:00 Evening
17:00 Evening	20:00 Evening
18:00 Evening	21:00 Evening
19:00 Evening	22:00 Sleeping hours
20:00 Evening	23:00 Sleeping hours
21:00 Evening	00:00+1 Sleeping hours
22:00 Sleeping hours	01:00+1 Sleeping hours

Daylight saving in 2026

Sydney moves its clocks back on Saturday 4 April (UTC+11 → UTC+10).
Sydney moves its clocks forward on Saturday 3 October (UTC+10 → UTC+11).

1 Jan – 4 AprSydney is 3 hours ahead of Perth.
4 Apr – 3 OctSydney is 2 hours ahead of Perth.
3 Oct – 31 DecSydney is 3 hours ahead of Perth.

Best times for a call

Working hours (09:00–17:00) overlap for 5 hours: 09:00–14:00 in Perth, which is 12:00–17:00 in Sydney.

Perth 09:00Working hoursSydney 12:00Working hours
Perth 10:00Working hoursSydney 13:00Working hours
Perth 11:00Working hoursSydney 14:00Working hours

How the time difference calculator works

The difference is each city's offset from UTC on the date you pick, subtracted. Offsets come from the IANA time zone database in your browser.

Because countries change their clocks on different dates — or not at all — the gap between two cities can change for a few weeks a year. The calculator lists every change in the year.

Examples

London is 5 hours ahead of New York for most of the year, but only 4 hours ahead for about three weeks in March and one week in late October.
Dubai doesn't change its clocks, so its gap to London is 4 hours in winter and 3 hours in summer.

Good for

Knowing when a colleague's day starts
Setting expectations for replies across time zones
Planning travel and jet lag

Frequently asked questions

What time is it in Sydney when it's 9 AM in Perth?: 11:00 AM — as of 3 October 2026. Sydney is 2 hours ahead of Perth.
Does the time difference between Perth and Sydney change?: Yes. In 2026 it's 3 hours or 2 hours, depending on the date, because only Sydney changes its clocks.
What's the best time for a call between Perth and Sydney?: Between 09:00 and 14:00 Perth time, when both cities are in working hours (09:00–17:00).
What time zones are Perth and Sydney in?: Perth uses Australia/Perth (UTC+8 today); Sydney uses Australia/Sydney (UTC+10 today).

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