Time Difference Between Shanghai and Boston

The time difference between Shanghai and Boston is 12 hours. When it is 12:00 noon in Shanghai, it is 00:00 in Boston. Shanghai uses the Asia/Shanghai time zone (UTC+8), while Boston uses America/New_York (UTC-4).

Boston is 12 hours behind Shanghai — 12 hours
Shanghai, China
05:00:50
Friday, March 27, 2026
UTC+8 · CST
Boston, United States
17:00:50
Thursday, March 26, 2026
UTC-4 · EDT (DST)

Time Zone Details: Shanghai vs Boston

Detail Shanghai Boston
Time Zone IDAsia/ShanghaiAmerica/New_York
UTC OffsetUTC+8UTC-4
AbbreviationCSTEDT
DST ActiveNoYes — currently observing
CountryChinaUnited States
RegionAsiaNorth America

Best Time to Schedule a Call

With a 12 hours gap, there is no standard business-hours overlap between Shanghai and Boston. One party will need to adjust their schedule. Early mornings in Shanghai or late evenings in Boston tend to be the most practical compromise.

Hour-by-Hour Time Conversion

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

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

Daylight Saving Time (DST) Impact

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

Practical Tips for Shanghai–Boston Scheduling

Compare Shanghai and Boston with Other Cities

From Shanghai

From Boston

Frequently Asked Questions

What is the time difference between Shanghai and Boston?

The time difference is 12 hours. Boston is 12 hours behind Shanghai.

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 Shanghai to Boston?

There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.

How do I convert Shanghai time to Boston time?

Subtract 12 hours from Shanghai time to get Boston 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.