durarvstardar
/doo-RAR/
/tar-DAR/
💡 Quick Rule
Durar = how long something lasts. Tardar = how long someone/something takes.
Think: Durar is for Duration. Tardar is for Taking time.
- The structure 'tardar en + infinitive' is very common and always means 'to take X amount of time to do something'.
📊 Comparison Table
| Context | durar | tardar | Why? |
|---|---|---|---|
| A movie | La película dura 3 horas. | El director tardó 5 años en hacerla. | Durar = the movie's runtime. Tardar = the time the director took to create it. |
| A battery | La batería dura 8 horas. | La batería tarda 2 horas en cargarse. | Durar = how long its power lasts. Tardar = how long it takes to complete the charging process. |
| A trip | El vuelo dura 4 horas. | Tardamos una hora en llegar al aeropuerto. | Durar = the total duration of the flight. Tardar = the time we took to complete the action of getting there. |
| A class | La clase de español dura 50 minutos. | La profesora tarda 5 minutos en empezar. | Durar = the set length of the class. Tardar = the time the teacher takes to begin. |
✅ When to Use "durar" / tardar
durar
To last, to go on for (focuses on the duration of an event or the lifespan of an object)
/doo-RAR/
Duration of an event
La película dura dos horas.
The movie lasts two hours.
Lifespan of an object
Estas baterías duran mucho tiempo.
These batteries last a long time.
How long something continues
La oferta dura hasta el viernes.
The offer lasts until Friday.
tardar
To take time, to be late (focuses on the time it takes for a subject to complete an action)
/tar-DAR/
Time taken to do something
Tardo una hora en llegar al trabajo.
I take an hour to get to work.
Delay or being late
¿Por qué tardaste tanto?
Why did you take so long? / Why were you so late?
Time a process takes
El tren tarda 20 minutos en llegar.
The train takes 20 minutes to arrive.
🔄 Contrast Examples
With "durar":
La reunión duró dos horas.
The meeting lasted two hours.
With "tardar":
Tardamos dos horas en terminar la reunión.
We took two hours to finish the meeting.
The Difference: Durar describes the meeting's length as a property of the meeting itself (it was a two-hour meeting). Tardar focuses on the time the participants spent to get to the end of it.
With "durar":
El efecto de la medicina dura ocho horas.
The effect of the medicine lasts for eight hours.
With "tardar":
La medicina tarda una hora en hacer efecto.
The medicine takes one hour to take effect.
The Difference: Durar describes the duration of the effect once it has started. Tardar describes the time it takes for the process (the effect) to begin.
With "durar":
El viaje en tren dura cinco horas.
The train journey lasts five hours.
With "tardar":
El tren tarda cinco horas en llegar a Madrid.
The train takes five hours to arrive in Madrid.
The Difference: This is a subtle one. 'Durar' describes the journey as a single block of time. 'Tardar' emphasizes the process of traveling and reaching the destination. In many cases, they are nearly interchangeable for journeys, but 'tardar' is more common when focusing on arrival.
🎨 Visual Comparison
Durar is about how long something lasts. Tardar is about how long it takes to happen.
⚠️ Common Mistakes
Yo duro una hora para llegar a casa.
Yo tardo una hora en llegar a casa.
When talking about the time *you* take to do something, use 'tardar'. 'Durar' describes how long something lasts on its own, not the time you spend.
La batería dura dos horas para cargar.
La batería tarda dos horas en cargarse.
Use 'tardar' for the time a process takes to complete. 'Durar' would describe how long the charge lasts after it's full, e.g., 'La carga dura ocho horas'.
📚 Related Grammar
Want to understand the grammar behind this pair? Explore these lessons for a deep dive:
✏️ Quick Practice
Quick Quiz: Durar vs Tardar
Question 1 of 3
Which verb completes the sentence? 'La película ___ tres horas.'
🏷️ Tags
Frequently Asked Questions
Can 'tardar' mean 'to be late'?
Yes, absolutely. If someone asks '¿Por qué tardas?', they mean 'Why are you taking so long?' or 'Why are you late?'. It's very common in this context.
Are there situations where 'durar' and 'tardar' are interchangeable?
For journeys, they can be very close in meaning. 'El viaje dura 5 horas' and 'El viaje tarda 5 horas' are both understood, but 'durar' focuses on the total time of the trip itself, while 'tardar' focuses on the time it takes to get from A to B. 'Tardar' is often preferred when the destination is mentioned.
Do I always need 'en' after 'tardar'?
You need 'en' when you are following it with another verb (an infinitive). For example, 'Tardo una hora en comer' (I take an hour to eat). If you're just saying how long something takes without another verb, you don't need 'en'. For example, 'El paquete tardó una semana' (The package took a week).