Time Difference Between Sydney and Phnom Penh

The time difference between Sydney and Phnom Penh is 3 hours. When it is 12:00 noon in Sydney, it is 09:00 in Phnom Penh. Sydney uses the Australia/Sydney time zone (UTC+10), while Phnom Penh uses Asia/Phnom_Penh (UTC+7).

Phnom Penh is 3 hours behind Sydney — 3 hours
Sydney, Australia
09:38:49
Monday, May 11, 2026
UTC+10 · AEST
↔
Phnom Penh, Cambodia
06:38:49
Monday, May 11, 2026
UTC+7 · +07

Time Zone Details: Sydney vs Phnom Penh

Detail Sydney Phnom Penh
Time Zone IDAustralia/SydneyAsia/Phnom_Penh
UTC OffsetUTC+10UTC+7
AbbreviationAEST+07
DST ActiveNoNo
CountryAustraliaCambodia
RegionOceaniaAsia

Best Time to Schedule a Call

There are 5 overlapping business hours between Sydney and Phnom Penh (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

12:00–17:00 in Sydney  =  09:00–14:00 in Phnom Penh

Hour-by-Hour Time Conversion

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

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

Daylight Saving Time (DST) Impact

Neither Sydney nor Phnom Penh is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.

Practical Tips for Sydney–Phnom Penh Scheduling

Compare Sydney and Phnom Penh with Other Cities

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

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

Frequently Asked Questions

What is the time difference between Sydney and Phnom Penh?

The time difference is 3 hours. Phnom Penh is 3 hours behind Sydney.

Does the time difference change during the year?

It can. If either Sydney or Phnom Penh observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).

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

The best window is between 12:00 and 17:00 Sydney time, which corresponds to 09:00–14:00 in Phnom Penh. Both sides fall within normal business hours.

How do I convert Sydney time to Phnom Penh time?

Subtract 3 hours from Sydney time to get Phnom Penh 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.