Work in progressTimezonePair is still being built — expect rough edges & missing cities
TimezonePair
Home·Portland·Portland × Shanghai
Prime meridian·:: UTC·

Portland×Shanghai

United States · US
Portland
—:—
America/Los_Angeles·
DST active
China · CN
Shanghai
—:—
Asia/Shanghai·
No DST

Portland is 15 hours ahead of Shanghai. Scrub a time, meet in the overlap, ship the invite — before the kettle boils.

◊ at a glance

Three numbers. The ones that decide the meeting.

01
Difference
15h ahead
Portland vs Shanghai
02
Overlap
0h
Business hours 09:00 – 17:00
03
UTC offsets
GMT-7 / GMT+8
04
Flight
11h 27m
9,314 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
No overlap in working hours
Portland
—:—
0
3
6
9
12
15
18
21
Shanghai
—:—
15
18
21
0
3
6
9
12
Scrub a meeting time14:00 Portland
Same moment in Shanghai05:00 Shanghai
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/portland/to/shanghai?t=14&a=A&d=2026-04-27&dur=60
14:00 Portland05:00 Shanghai
Full 24-hour reference
PortlandShanghai
00:00
15:00Shanghai only
01:00
16:00Shanghai only
02:00
17:00
03:00
18:00
04:00
19:00
05:00
20:00
06:00
21:00
07:00
22:00
08:00
23:00
09:00Portland only
00:00
10:00Portland only
01:00
11:00Portland only
02:00
12:00Portland only
03:00
13:00Portland only
04:00
14:00Portland only
05:00
15:00Portland only
06:00
16:00Portland only
07:00
17:00
08:00
18:00
09:00Shanghai only
19:00
10:00Shanghai only
20:00
11:00Shanghai only
21:00
12:00Shanghai only
22:00
13:00Shanghai only
23:00
14:00Shanghai only
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Portland and Shanghai?

Portland is 15 hours ahead of Shanghai. Portland runs on GMT-7 and Shanghai on GMT+8. The gap can shift by an hour when either side enters or leaves daylight saving — the live clocks above always reflect the current offset.

When's the best time to schedule a meeting?

Standard 09:00–17:00 workdays don't intersect. Most teams compromise with one side meeting early (before 09:00) or late (after 17:00).

Does daylight saving time change the difference?

Yes, if either city observes DST. When one side shifts and the other doesn't, the gap changes by one hour. The DST badges under each clock show whether each zone is currently shifted and when the next transition lands.

How far is Portland from Shanghai?

About 9,314 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 11h 27m, not counting airport time, winds, or routing around restricted airspace.

Can I send this meeting time as a calendar invite?

Yes. Pick a time on the slider above, open the meeting card, customize the title and duration, then download the .ics file. It imports cleanly into Google Calendar, Outlook, and Apple Calendar with the correct timezone attached.

◊ keep going

One pair down. 299 cities to go.

Every pair in 300 cities runs the same clocks, the same overlap, the same one-click invite. Pick another.

PORTLAND · America/Los_Angeles
GMT-7 · 45.52°, -122.68°

SHANGHAI · Asia/Shanghai
GMT+8 · 31.23°, 121.47°

0h shared · 15h ahead