Rio de Janeiro to Martha Lake time converter

Martha Lake is 4 hours behind Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 5:00 AM in Martha Lake.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Martha Lake PDT

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3
Martha Lake
Washington, United States
Wed, Oct 21
PDTUTC-7-4h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Martha Lake conversion table

Every hour of today in Rio de Janeiro and the matching time in Martha Lake. Light rows are typical working hours (9:00–18:00).

Rio de JaneiroMartha Lake
12:00 AM8:00 PM−1 day
1:00 AM9:00 PM−1 day
2:00 AM10:00 PM−1 day
3:00 AM11:00 PM−1 day
4:00 AM12:00 AM
5:00 AM1:00 AM
6:00 AM2:00 AM
7:00 AM3:00 AM
8:00 AM4:00 AM
9:00 AM5:00 AM
10:00 AM6:00 AM
11:00 AM7:00 AM
12:00 PM8:00 AM
1:00 PM9:00 AM
2:00 PM10:00 AM
3:00 PM11:00 AM
4:00 PM12:00 PM
5:00 PM1:00 PM
6:00 PM2:00 PM
7:00 PM3:00 PM
8:00 PM4:00 PM
9:00 PM5:00 PM
10:00 PM6:00 PM
11:00 PM7:00 PM

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in Rio de Janeiro (9:00 AM – 2:00 PM in Martha Lake).

Daylight saving time and the difference

The difference changes during the year because Rio de Janeiro and Martha Lake switch clocks on different dates:

  • Oct 21, 2026 – Nov 1, 2026: -4h
  • Nov 1, 2026 – Mar 14, 2027: -5h
  • Mar 14, 2027 – Oct 21, 2027: -4h

Distance

Rio de Janeiro and Martha Lake are 11,104 km (6,900 miles) apart in a straight line.

More conversions

Martha Lake to Rio de JaneiroRio de Janeiro to New YorkRio de Janeiro to LondonRio de Janeiro to Los AngelesRio de Janeiro to ChicagoRio de Janeiro to TorontoRio de Janeiro to São PauloRio de Janeiro to ParisRio de Janeiro to BerlinRio de Janeiro to MoscowRio de Janeiro to DubaiRio de Janeiro to New DelhiRio de Janeiro to Bangkok
New York to Martha LakeLondon to Martha LakeLos Angeles to Martha LakeChicago to Martha LakeToronto to Martha LakeSão Paulo to Martha LakeParis to Martha LakeBerlin to Martha LakeMoscow to Martha LakeDubai to Martha LakeNew Delhi to Martha LakeBangkok to Martha Lake

Questions and answers

What is the time difference between Rio de Janeiro and Martha Lake?

Martha Lake is 4 hours behind Rio de Janeiro.

What time is it in Martha Lake when it is 9 AM in Rio de Janeiro?

When it is 9:00 AM in Rio de Janeiro, it is 5:00 AM in Martha Lake.

When is the best time to call Martha Lake from Rio de Janeiro?

Both sides are at work from 1:00 PM – 6:00 PM in Rio de Janeiro (9:00 AM – 2:00 PM in Martha Lake).

Does the time difference between Rio de Janeiro and Martha Lake change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.