Piauí, Brazil
Piauí follows Brasília Time, UTC−3, in every municipality. Teresina, Parnaíba, and the inland cities share one clock, while local sunrise varies from east to west and through the year.
Teresina, Brazil
Friday, 4 September 2026
UTC−3 · America/Fortaleza
Time and sun data for Teresina — the largest city of Piauí
The sun in Teresina
Sunrise 05:51 Solar noon 11:51 Sunset 17:52 Daylight 12 h 02 min Night 11 h 58 min Civil twilight 05:30 – 18:13
Brazil · 3 569 cities · page 1 of 18
Largest cities
- Teresina 871 126
- Parnaiba 170 491
- Picos 83 090
- Piripiri 63 787
- Floriano 62 036
- Barras 47 938
- Altos 47 453
- Campo Maior 46 893
- Uniao 46 119
- Esperantina 40 970
- Jose De Freitas 39 336
- Sao Raimundo Nonato 38 934
All cities — page 1
- Abóbora
- Abobora
- Aboboras
- Abreu
- Acampamonte
- Acaua
- Acude
- Açude
- Acude Velho
- Aeroporto
- Afeto
- Afonso Gil I
- Afonso Gil II
- Agricolândia
- Agricolandia
- Agrovila do Projeto de Assentamento Ambrósio
- Agrovila do Projeto de Assentamento Arizona I
- Agrovila do Projeto de Assentamento Arizona II
- Agrovila do Projeto de Assentamento Barreiro
- Agrovila do Projeto de Assentamento Bem-te-vi
- Agrovila do Projeto de Assentamento Cajupi
- Agrovila do Projeto de Assentamento Canaã
- Agrovila do Projeto de Assentamento Cascavel
- Agrovila do Projeto de Assentamento Estadual Projeto Piauí
- Agrovila do Projeto de Assentamento Iracema
- Agrovila do Projeto de Assentamento União
- Agua Azul
- Agua Bela
- Agua Branca
- Água Branca
- Água Branca
- Água Branca
- Agua Branca De Cima
- Agua Brava
- Agua Limpa
- Agua Verde
- Aguas Belas
- Águas Belas
- Aguas Belas
- Alagadiço
- Alagadiço
- Alagadiço
- Alagadiço
- Alagadiço
- Alagadiço
- Alagadiço
- Alagadico
- Alagoa Grande
- Alagoado
- Alagoinha
- Alagoinha
- Alagoinha
- Alagoinha do Piauí
- Alagoinha Do Piaui
- Alagoinhas
- Aldeia
- Alecrim
- Alegre
- Alegre
- Alegre
- Alegre (1)
- Alegre (2)
- Alegre Velho
- Alegrete
- Alegrete Do Piaui
- Alegrete do Piauí
- Alegria
- Alegria
- Alegria
- Alem Tejo
- Alexandre Mendes
- Algodoes
- Algodões
- Alívio
- Alívio
- Alivio
- Almas
- Almas
- Almas (1)
- Almas (2)
- Almecega
- Almecegas
- Almeida
- Altamira
- Altamira
- Altidao
- Altinho
- Alto Alegre
- Alto Alegre
- Alto Alegre
- Alto Belo
- Alto Bonito
- Alto Bonito
- Alto Bonito
- Alto Bonito
- Alto Da Betania
- Alto Da Cruz
- Alto Da Manela
- Alto da Ressurreição
- Alto do Balanço
- Alto do Batista
- Alto Do Meio
- Alto Do Vista
- Alto Formoso
- Alto Formoso
- Alto Formoso
- Alto Grande
- Alto Longa
- Alto Mimaso
- Alto Novo
- Alto Nôvo (1)
- Alto Nôvo (2)
- Alto São Pedro
- Alto Sereno
- Alto Verde
- Altos
- Altos
- Altos
- Altos
- Altos
- Altos
- Altos
- Altos
- Altos
- Alvalhado
- Alvorada
- Alvorada Do Gurgueia
- Alvorada do Gurguéia
- Amapa
- Amarante
- Amarelo
- Amarelo Ferrado
- Amargosa
- Amazônia
- Ambrosio
- Anaja
- Anaja Dos Pereiras
- Ananas
- Anastacio
- Anchieta
- Andre
- Angeim
- Angélica I
- Angélica II
- Angelim
- Angelim
- Angelim
- Angelim
- Angelim
- Angelim
- Angelim
- Angical
- Angical
- Angical
- Angical
- Angical
- Angical
- Angical (1)
- Angical (1)
- Angical (1)
- Angical (2)
- Angical (2)
- Angical (2)
- Angical (3)
- Angical (4)
- Angical Do Piaui
- Angico
- Angico
- Angico Branco
- Angico Branco
- Angico Branco
- Angico Branco
- Angico Branco Ii
- Angico Das Araras
- Angico Torto
- Angicos
- Angicos
- Aninga
- Aninga
- Anisio De Abreu
- Anita Ferraz
- Anita Ferraz II
- Anjinho
- Antonio Almeida
- Aparecida
- Aparecida
- Apolônia
- Aposento
- Aprasive
- Aprazível
- Aprazivel
- Araça
- Araca
- Araçá
- Aradati
- Araioses
- Arame
- Ardeira
- Ardeiras
- Ardeiras
Current time in Piauí, Brazil
The state’s local time is three hours behind UTC. It is the same official hour used in Brasília and in neighbouring Maranhão, Ceará, Pernambuco, and Bahia, simplifying regional calls and overland journeys.
Piauí does not currently move its clocks for a seasonal daylight-saving period. When comparing Teresina with a foreign city, however, check the foreign location’s rules for the chosen date. Piauí needs no clock adjustment at its state borders, though a long road can still make the next appointment feel far away.
Places that share the state clock
Piauí reaches from a short Atlantic coastline into a large interior. Its civil-time arrangement remains uniform across that geography, so moving between its principal municipalities never creates an official one-hour jump.
Teresina is the capital, situated beside the Parnaíba River. Parnaíba is the principal city near the coast. Picos is an important centre in the interior. Floriano lies in the southern part of the state.
Piripiri serves communities in northern Piauí. The shared UTC−3 offset should not be confused with simultaneous daylight. Parnaíba and Picos may display the same hour yet have different positions of the Sun because their longitudes and latitudes are not identical.
Finding a useful sunrise time
A sunrise lookup should name the municipality. Teresina is a reasonable reference for the capital area, but it is not an exact substitute for coastal or southern Piauí. The selected calendar day is equally important.
Because Piauí is relatively close to the Equator, seasonal changes in daylight are less extreme than in Brazil’s far south. They still exist, and sunrise does not remain at one permanent clock time. Enter the correct municipality rather than Piauí alone.
Verify that the result is expressed in UTC−3. Check civil twilight if work begins before sunrise. Use a separate weather forecast to assess cloud or rain. The published sunrise is based on the horizon and the Sun’s calculated position. A hill, tree line, or building can postpone direct visibility at a particular observation point. Conversely, the sky begins brightening before the formal sunrise moment.
Questions and answers
- What time zone is used in Teresina?
- Teresina uses Brasília Time, UTC−3.
- Does Parnaíba keep a different coastal time?
- No. Parnaíba follows the same UTC−3 time as the rest of Piauí.
- Is sunrise constant because the state is near the Equator?
- No. Daylight varies less dramatically than in southern Brazil, but sunrise still changes by date and location.