Portuguese Phrase
Preciso marcar um horário hoje?
Meaning
The speaker is asking whether it is necessary to book an appointment for the same day. It can be used in professional or personal contexts when you need to confirm if a same‑day slot is available or required.
When to use
Use this phrase when you call a clinic, a service provider, a coworker, or a friend to see if you can arrange a meeting or appointment for today. It works both in formal (e.g., a doctor's office) and informal (e.g., meeting a friend) settings.
✦Grammar Breakdown
Precisomarcarumhoráriohoje?
Preciso (verbo precisar)
‘Preciso’ is the first‑person singular present of ‘precisar’, meaning ‘I need’. It can be used as a statement or, with intonation, as a question.
Marcar (infinitivo)
After ‘preciso’, the infinitive verb ‘marcar’ (to book, to set) follows directly without a preposition.
Um horário (artigo + substantivo)
‘Um’ is the indefinite article; ‘horário’ means ‘time slot’ or ‘appointment’. Together they form the object of ‘marcar’.
Hoje (advérbio de tempo)
‘Hoje’ places the action in the present day, giving the sentence a sense of urgency.
Interrogação por entonação
In spoken Portuguese, a rising intonation at the end turns the declarative ‘Preciso marcar um horário hoje’ into the question ‘Preciso marcar um horário hoje?’
🗨In Conversation
Preciso marcar um horário hoje?
Do I need to schedule an appointment today?
Claro, temos vagas às 14h ou às 16h. Qual prefere?
Sure, we have openings at 2 p.m. or 4 p.m. Which do you prefer?
✕Common Mistakes
Preciso de marcar um horário hoje?
‘Preciso de’ is incorrect here; the verb ‘precisar’ already expresses the need without a preposition.
Preciso marcar um tempo hoje?
In some regions ‘tempo’ is used for a general time, but ‘horário’ is the proper word for a specific appointment slot.
Preciso marcar um horário hoje.
Without the rising intonation or a question mark, the sentence sounds like a statement rather than a question.
↔Alternatives
Preciso agendar um horário hoje?
Do I need to book a time slot today?
Será que consigo marcar um horário para hoje?
Can I manage to set an appointment for today?
Posso marcar um horário hoje?
Can I book an appointment today?
Cultural Tip
In Brazil, it’s common to ask about same‑day availability politely and to follow up with a thank‑you (‘Obrigado/a’) after the slot is confirmed. In more formal settings (e.g., medical or legal appointments) you might use ‘agendar’ instead of ‘marcar’ and add a title, such as ‘Preciso agendar um horário com o Dr. Silva hoje?’

