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"On time" is a phrase which is often translated as "a tiempo", and "in time" is an adverb which is often translated as "con el tiempo". Learn more about the difference between "on time" and "in time" below.
on time(
an
taym
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (punctual)
a. a tiempo
The delivery guy didn't deliver on time, so the pizza came out of his pay.El repartidor no llegó a tiempo, así que le sacaron la pizza de su salario.
They said the plane would arrive on time, but I have my doubts.Dijeron que el avión llegaría a tiempo, pero tengo mis dudas.
in time(
ihn
taym
)An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
1. (eventually)
2. (punctually)
a. a tiempo
Emily is my best friend, and I have to get to her wedding in time!¡Emily es mi mejor amiga y tengo que llegar a su boda a tiempo!