Time Difference Between Phnom Penh and Sydney

The time difference between Phnom Penh and Sydney is 4 hours. When it is 12:00 noon in Phnom Penh, it is 16:00 in Sydney. Phnom Penh uses the Asia/Phnom_Penh time zone (UTC+7), while Sydney uses Australia/Sydney (UTC+11).

Sydney is 4 hours ahead of Phnom Penh — 4 hours
Phnom Penh, Cambodia
05:27:00
Friday, March 27, 2026
UTC+7 · +07
↔
Sydney, Australia
09:27:00
Friday, March 27, 2026
UTC+11 · AEDT (DST)

Time Zone Details: Phnom Penh vs Sydney

Detail Phnom Penh Sydney
Time Zone IDAsia/Phnom_PenhAustralia/Sydney
UTC OffsetUTC+7UTC+11
Abbreviation+07AEDT
DST ActiveNoYes — currently observing
CountryCambodiaAustralia
RegionAsiaOceania

Best Time to Schedule a Call

There are 4 overlapping business hours between Phnom Penh and Sydney (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–13:00 in Phnom Penh  =  13:00–17:00 in Sydney

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Phnom Penh time to Sydney time. Rows highlighted in green indicate overlapping business hours in both cities.

Phnom Penh Sydney
00:00 04:00 Night
01:00 05:00 Night
02:00 06:00 Night
03:00 07:00 Night
04:00 08:00 Night
05:00 09:00 Night
06:00 10:00
07:00 11:00
08:00 12:00
09:00 13:00 Overlap
10:00 14:00 Overlap
11:00 15:00 Overlap
12:00 16:00 Overlap
13:00 17:00
14:00 18:00
15:00 19:00
16:00 20:00
17:00 21:00
18:00 22:00
19:00 23:00
20:00 00:00 (+1 day)
21:00 01:00 (+1 day)
22:00 02:00 (+1 day) Night
23:00 03:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Sydney is currently observing daylight saving time, while Phnom Penh is on standard time. When Sydney switches back to standard time, the difference between these two cities will shift by 1 hour.

Practical Tips for Phnom Penh–Sydney Scheduling

Compare Phnom Penh and Sydney with Other Cities

From Phnom Penh

Phnom Penh vs New York Phnom Penh vs London Phnom Penh vs Tokyo Phnom Penh vs Dubai Phnom Penh vs Los Angeles Phnom Penh vs Paris Phnom Penh vs Singapore Phnom Penh vs Berlin Phnom Penh vs Toronto Phnom Penh vs Hong Kong Phnom Penh vs Mumbai Phnom Penh vs Seoul Phnom Penh vs Chicago Phnom Penh vs San Francisco Phnom Penh vs Moscow Phnom Penh vs Bangkok Phnom Penh vs Shanghai Phnom Penh vs Sao Paulo Phnom Penh vs Mexico City Phnom Penh vs Cairo Phnom Penh vs Johannesburg

From Sydney

Sydney vs New York Sydney vs London Sydney vs Tokyo Sydney vs Dubai Sydney vs Los Angeles Sydney vs Paris Sydney vs Singapore Sydney vs Berlin Sydney vs Toronto Sydney vs Hong Kong Sydney vs Mumbai Sydney vs Seoul Sydney vs Chicago Sydney vs San Francisco Sydney vs Moscow Sydney vs Bangkok Sydney vs Shanghai Sydney vs Sao Paulo Sydney vs Mexico City Sydney vs Cairo Sydney vs Johannesburg

Frequently Asked Questions

What is the time difference between Phnom Penh and Sydney?

The time difference is 4 hours. Sydney is 4 hours ahead of Phnom Penh.

Does the time difference change during the year?

Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.

When is the best time to call from Phnom Penh to Sydney?

The best window is between 09:00 and 13:00 Phnom Penh time, which corresponds to 13:00–17:00 in Sydney. Both sides fall within normal business hours.

How do I convert Phnom Penh time to Sydney time?

Add 4 hours to Phnom Penh time to get Sydney time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.