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GMT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BrazilBRT
UTC−3
3h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

12:00 pm12:00 GMT (UTC+0), Oct 31, 2026 = 9:00 am09:00 BRT (UTC-3), Oct 31, 2026

GMT is 3 hours ahead of Duque de Caxias.

How the time difference changes

GMT is 3 hours ahead of Duque de Caxias year-round.

Working hours of 9:00 am to 6:00 pm in GMT correspond to 6:00 am to 3:00 pm in Duque de Caxias.Working hours of 09:00 to 18:00 in GMT correspond to 06:00 to 15:00 in Duque de Caxias.

Compare GMT time with Duque de Caxias time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Greenwich Mean Time is 3 hours ahead of BRT (Brasilia Time).
12:00 pm12:00 in GMT is 9:00 am09:00 in Duque de Caxias, Brazil

GMT to Duque de Caxias call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in GMT which corresponds to 9am-3pm09:00-15:00 in Duque de Caxias

12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
9:00 am09:00 BRT (Brasilia Time) (Duque de Caxias, Brazil). Offset UTC -3:00 hours

12:00 pm12:00 GMT / 9:00 am09:00 Duque de Caxias, Brazil

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
GMTDuque de Caxias, Brazil
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Greenwich Mean Time

Offset: GMT is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara

Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

Map of the areas on Greenwich Mean Time (GMT)
GMT all year GMT part of the year

Today all shaded areas are on GMT.

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Conakry
  • Africa/Dakar
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/GMT
  • Etc/GMT+0
  • Etc/GMT-0
  • Etc/GMT0
  • Etc/Greenwich
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
  • GMT
  • GMT+0
  • GMT-0
  • GMT0
  • Greenwich
  • Iceland
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Duque de Caxias Time Zone and Facts

Time Zone

Abbreviation / Offset
BRT – Brasilia Time, UTC-3 (no daylight saving time)

Duque de Caxias Facts

Country
Brazil
Alternative Names
Caxias, Duke de Kashijas, Duke de Kasijasas, Duke de Kašijasas, Duki di Kashias, Duki di Kasias, Duki-di-Kashias, QDQ, duki ci ka cheiy s, dukijikasiaseu, dukuye de kaksa'iyasa, dwky dy kashys ryw dw zhanyrw, dwq dy kaksyas, ka xi ya si gong jue cheng, Дуке де Кашијас, Дуки ди Кашиас, Дуки-ди-Кашиас, Դուկի դի Կաշիաս, دوق دي كاكسياس, دوکی دی کاشیس، ریو دو ژانیرو, ডুকুয়ে ডে কাক্সইয়াস, ดูกีจีกาเชียส, დუკი-დი-კაშიასი, ドゥケ・デ・カシアス, 卡希亞斯公爵城, 두키지카시아스
Population
866,347
Currency
Real (BRL)
Geographic Coordinates
22° 47' S Latitude / 43° 18' W Longitude
International Dialing Code
+55