Work in progressTimezonePair is still being built — expect rough edges & missing cities
TimezonePair
Home·Chicago·Chicago × Rio de Janeiro
Prime meridian·:: UTC·

Chicago×Rio de Janeiro

United States · US
Chicago
—:—
America/Chicago·
DST active
Brazil · BR
Rio de Janeiro
—:—
America/Sao_Paulo·
No DST

Chicago is 2 hours ahead of Rio de Janeiro. 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
2h ahead
Chicago vs Rio de Janeiro
02
Overlap
6h
Business hours 09:00 – 17:00
03
UTC offsets
GMT-5 / GMT-3
CDT · BRT
04
Flight
10h 32m
8,531 km · great-circle, non-stop cruise
◊ the overlap

When the world meets at work.

24-hour overlap
6h shared · 09:00 – 15:00 Chicago
Chicago
—:—
0
3
6
9
12
15
18
21
Rio de Janeiro
—:—
3
6
9
12
15
18
21
0
Scrub a meeting time14:00 Chicago
Same moment in Rio de Janeiro16:00 Rio de Janeiro
◊ hour by hour

Read the day in both zones.

Share this meeting
timezonepair.com/from/chicago/to/rio-de-janeiro?t=14&a=A&d=2026-04-27&dur=60
14:00 Chicago16:00 Rio de Janeiro
Full 24-hour reference
ChicagoRio de Janeiro
00:00
02:00
01:00
03:00
02:00
04:00
03:00
05:00
04:00
06:00
05:00
07:00
06:00
08:00
07:00
09:00Rio de Janeiro only
08:00
10:00Rio de Janeiro only
09:00Both working
11:00
10:00Both working
12:00
11:00Both working
13:00
12:00Both working
14:00
13:00Both working
15:00
14:00Both working
16:00
15:00Chicago only
17:00
16:00Chicago only
18:00
17:00
19:00
18:00
20:00
19:00
21:00
20:00
22:00
21:00
23:00
22:00
00:00
23:00
01:00
◊ common questions

Quick answers. Before you book the call.

What's the time difference between Chicago and Rio de Janeiro?

Chicago is 2 hours ahead of Rio de Janeiro. Chicago runs on GMT-5 and Rio de Janeiro on GMT-3. 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?

There are 6 hours where both cities are inside a 09:00–17:00 workday. Aim for the middle of that window so neither side is starting or closing out.

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 Chicago from Rio de Janeiro?

About 8,531 km as the crow flies (great-circle distance). A non-stop commercial flight cruises that in roughly 10h 32m, 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.

CHICAGO · America/Chicago
GMT-5 · 41.88°, -87.63°

RIO DE JANEIRO · America/Sao_Paulo
GMT-3 · -22.91°, -43.17°

6h shared · 2h ahead