What to say in Portuguese when changing a time slot

2026.06.13

Introduction

Changing an appointment time is a common everyday situation when learning Brazilian Portuguese. This article helps beginners know what to say, how to reply, and useful vocabulary for rescheduling meetings, classes, reservations, and transport. Learn simple phrases, polite ways to ask for a different time, sample dialogues, and common mistakes to avoid.

Why learn phrases for changing a time slot?

When you travel, study, or communicate with Brazilian Portuguese speakers, plans often shift. Knowing polite and clear ways to change a time slot prevents confusion and keeps relationships professional and friendly. These phrases are useful for phone calls, messages, email, and face-to-face interactions.

Core vocabulary and useful verbs

Before full phrases, learn these essential words and verbs. The first appearance of a main Portuguese term is highlighted.

alterar — to change

mudar — to move or change (used for times or dates)

desmarcar — to cancel an appointment

remarcar — to reschedule

horário — schedule, time slot

marcar — to book or set an appointment

agendar — to schedule

confirmar — to confirm

disponível — available

mais cedo — earlier

mais tarde — later

Polite ways to ask to change a time slot

Use these phrases when you need to request a different time. The first time each key phrase appears it is emphasized, later repeats will use for readability.

Desculpe, posso remarcar meu horário? — Sorry, can I reschedule my appointment?

Você tem outro horário disponível? — Do you have another available time?

É possível mudar para mais tarde? — Is it possible to move it for later?

Preciso alterar meu horário para mais cedo. — I need to change my time to earlier.

Posso desmarcar e remarcar para outro dia? — Can I cancel and reschedule for another day?

Short explanations of tone and formality

For most service situations, polite but simple language is best. Start with Desculpe or Com licença when interrupting. For friends or informal contexts, you can use a softer request like Você pode or Posso. In a business or formal context, use conditional or polite verbs: Seria possível… or Gostaria de…

Practical phrases for different contexts

Here are context-specific suggestions and short examples that work for appointments, classes, restaurants, and transport.

Medical appointments

Gostaria de remarcar a consulta com o doutor Silva. — I would like to reschedule the appointment with Dr. Silva.

Tem vaga amanhã de manhã? — Is there an opening tomorrow morning?

Minha consulta é às 15h. Posso mudar para as 17h? — My appointment is at 3 PM. Can I change it to 5 PM?

Classes and lessons

Posso alterar a aula de terça-feira para quinta-feira? — Can I change the Tuesday class to Thursday?

O professor está disponível mais cedo? — Is the teacher available earlier?

Prefiro remarcar para o mesmo horário na próxima semana. — I prefer to reschedule to the same time next week.

Restaurants and reservations

Quero mudar a reserva das 19h para as 20h. — I want to change the reservation from 7 PM to 8 PM.

Tem mesa disponível às 20h? — Is there a table available at 8 PM?

Podemos remarcar a reserva para sábado? — Can we reschedule the reservation for Saturday?

Transportation and tickets

Preciso alterar meu bilhete para outro horário. — I need to change my ticket to another time.

Qual o procedimento para remarcar a passagem? — What is the procedure to reschedule the ticket?

Há taxa para alterar o horário? — Is there a fee to change the time?

Simple sample dialogues

Below are short beginner-friendly dialogues for phone calls, messaging, and in-person changes. Use line breaks for natural pauses.

Phone call — Clinic

Recepcionista: Olá, Clínica Vida, como posso ajudar?

Paciente: Desculpe, minha consulta é hoje às 14h. Posso remarcar para as 16h?

Recepcionista: Sim, temos vaga às 16h. Posso confirmar seu nome?

Paciente: Meu nome é Ana Souza.

Text message — Tutor

Aluno: Oi, gostaria de saber se você pode mudar nossa aula de quarta para sexta.

Tutor: Oi! Posso sexta às 18h. Serve pra você?

Aluno: Perfeito, muito obrigado.

In-person — Restaurant

Você: Bom dia, tenho uma reserva às 19h. Tem como mudar para as 20h?

Host: Deixe-me ver… Sim, às 20h está disponível.

How to confirm or decline a new time

When someone offers a new time, you need short and clear replies. These responses are polite and common.

Perfeito, confirmado. — Perfect, confirmed.

Sim, esse horário serve. — Yes, that time works.

Não, esse horário não é bom. Tem outra opção? — No, that time is not good. Is there another option?

Posso pensar e confirmar depois? — Can I think and confirm later?

Prefiro cancelar. — I prefer to cancel.

Polite follow-ups and reminders

After changing a time, it is useful to send a confirmation or ask for one. These short phrases help avoid misunderstandings.

Você pode confirmar o novo horário por favor? — Can you confirm the new time please?

Recebi a confirmação por e-mail? — Will I receive the confirmation by email?

Quero confirmar a nova data e horário. — I want to confirm the new date and time.

Common beginner mistakes and tips

Beginners often make a few recurring errors. Keep these tips in mind to sound natural and avoid confusion.

1. Mixing verbs: remarcar is usually the best choice for rescheduling. Avoid using cancelar when you mean to change time.

2. Time expressions: Portuguese commonly uses 24-hour clock in writing and formal contexts. For spoken, you can say 7 da noite for 7 PM.

3. Missing politeness: Always add por favor or desculpe in requests for a polite tone.

4. Pronoun clarity: Use posso when asking about yourself and você pode when asking the other person.

5. Confirm details: Always repeat the new time and date to avoid mistakes. Example: Então é dia 10 às 15h, certo?

Small grammar notes for beginners

Here are a few simple grammar points that will make your requests clear.

1. Use infinitive verbs after modal verbs: posso remarcar, preciso alterar.

2. For suggestions, use seria possível for polite hypothetical requests: Seria possível remarcar para amanhã?

3. To indicate a change direction: mais cedo for earlier, mais tarde for later.

Quick cheat sheet: 10 essential phrases

Save or memorize these simple lines for common situations.

Desculpe, posso remarcar meu horário?

Você tem outro horário disponível?

É possível mudar para mais tarde?

Preciso alterar meu horário para mais cedo.

Tem vaga amanhã de manhã?

Quero mudar a reserva das 19h para as 20h.

Há taxa para alterar o horário?

Perfeito, confirmado.

Não, esse horário não é bom. Tem outra opção?

Você pode confirmar o novo horário por favor?

Conclusion

Changing a time slot in Brazilian Portuguese is straightforward with the right verbs and polite phrases. Use remarcar, alterar, and clear time expressions, always confirm the new details, and keep your tone polite. These simple scripts and dialogues will help you handle rescheduling at clinics, restaurants, classes, and transport confidently as a beginner.