Time Difference Between Phnom Penh and Shanghai

The time difference between Phnom Penh and Shanghai is 1 hour. When it is 12:00 noon in Phnom Penh, it is 13:00 in Shanghai. Phnom Penh uses the Asia/Phnom_Penh time zone (UTC+7), while Shanghai uses Asia/Shanghai (UTC+8).

Shanghai is 1 hour ahead of Phnom Penh — 1 hour
Phnom Penh, Cambodia
05:21:48
Friday, March 27, 2026
UTC+7 · +07
↔
Shanghai, China
06:21:48
Friday, March 27, 2026
UTC+8 · CST

Time Zone Details: Phnom Penh vs Shanghai

Detail Phnom Penh Shanghai
Time Zone IDAsia/Phnom_PenhAsia/Shanghai
UTC OffsetUTC+7UTC+8
Abbreviation+07CST
DST ActiveNoNo
CountryCambodiaChina
RegionAsiaAsia

Best Time to Schedule a Call

There are 7 overlapping business hours between Phnom Penh and Shanghai (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–16:00 in Phnom Penh  =  10:00–17:00 in Shanghai

Hour-by-Hour Time Conversion

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

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

Daylight Saving Time (DST) Impact

Neither Phnom Penh nor Shanghai 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 Phnom Penh–Shanghai Scheduling

Compare Phnom Penh and Shanghai with Other Cities

From Phnom Penh

Phnom Penh vs New York Phnom Penh vs London Phnom Penh vs Tokyo Phnom Penh vs Sydney 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 Sao Paulo Phnom Penh vs Mexico City Phnom Penh vs Cairo Phnom Penh vs Johannesburg

From Shanghai

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

Frequently Asked Questions

What is the time difference between Phnom Penh and Shanghai?

The time difference is 1 hour. Shanghai is 1 hour ahead of Phnom Penh.

Does the time difference change during the year?

It can. If either Phnom Penh or Shanghai 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 Phnom Penh to Shanghai?

The best window is between 09:00 and 16:00 Phnom Penh time, which corresponds to 10:00–17:00 in Shanghai. Both sides fall within normal business hours.

How do I convert Phnom Penh time to Shanghai time?

Add 1 hour to Phnom Penh time to get Shanghai 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.