Adelaide to Perth Time Difference

Perth is 1 hour and 30 minutes behind Adelaide. The best window for a call is 10:30 AM–5 PM in Adelaide, which is 9 AM–3:30 PM in Perth — an overlap of 6 hours and 30 minutes inside 9 AM–5 PM on both sides. Clocks change on October 4, 2026, which briefly shifts the gap between Adelaide and Perth — the converter on this page always reflects the correct offset for the date you pick.

• When it's 9:00 AM in Adelaide, it's 7:30 AM in Perth.
• When it's 9:00 AM in Perth, it's 10:30 AM in Adelaide.

Perth is currently 1 hour and 30 minutes behind Adelaide.

The 9 AM – 5 PM business windows in Adelaide and Perth overlap for 6 hours and 30 minutes. 10:30 AM–5 PM in Adelaide is 9 AM–3:30 PM in Perth. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

On October 4, 2026, Adelaide shifts for daylight saving. After that, Perth will be 2 hours and 30 minutes behind Adelaide (currently 1 hour and 30 minutes behind Adelaide). The converter and the tables above always reflect the correct offset for the date you pick.

• Adelaide is not currently observing daylight saving time (standard time is in effect).
• Perth does not observe daylight saving time.

Frequently asked questions

Is Perth ahead of or behind Adelaide?

Perth is 1 hour and 30 minutes behind Adelaide.

How many hours behind Adelaide is Perth?

Perth is 1 hour and 30 minutes behind Adelaide.

What time is 9 AM in Adelaide in Perth?

9:00 AM in Adelaide is 7:30 AM in Perth.

What time is noon in Adelaide in Perth?

12:00 PM in Adelaide is 10:30 AM in Perth.

What time is 5 PM in Adelaide in Perth?

5:00 PM in Adelaide is 3:30 PM in Perth. Useful for end-of-day handoffs between the two offices.

What time is 3 PM in Adelaide in Perth?

3:00 PM in Adelaide is 1:30 PM in Perth.

Is Adelaide currently observing daylight saving time?

Adelaide observes daylight saving time seasonally, but is not currently on DST (standard time is in effect).

Is Perth currently observing daylight saving time?

Perth does not observe daylight saving time — its UTC offset stays the same all year.

Do Adelaide and Perth observe daylight saving?

On October 4, 2026, Adelaide shifts for daylight saving. After that, Perth will be 2 hours and 30 minutes behind Adelaide (currently 1 hour and 30 minutes behind Adelaide). The converter and the tables above always reflect the correct offset for the date you pick.

When is the best time to call Perth from Adelaide?

Aim for 10:30 AM–5 PM in Adelaide, which is 9 AM–3:30 PM in Perth.

When is the best time to call Adelaide from Perth?

Aim for 9 AM–3:30 PM in Perth, which is 10:30 AM–5 PM in Adelaide.

Adelaide (ACST) to Perth (AWST) — how do I convert quickly?

Subtract 1 hour and 30 minutes from Adelaide local time to get Perth local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

• Adelaide to New York
• Adelaide to London
• Adelaide to Tokyo
• Adelaide to Dubai
• Adelaide to Singapore
• Adelaide to Los Angeles
• Adelaide to Sydney
• Adelaide to Paris
• Adelaide to Mumbai
• Adelaide to Hong Kong