 In time versus on time. While the difference between these two words may be a subtle one, they do express slightly different ideas. Let's break it down. Generally speaking, in time means early enough and not late. For example, I arrived just in time to get a cup of coffee before the meeting. On time, on the other hand, is used more in the sense of punctually, according to a schedule, and neither late nor early, such as here. Despite the heavy traffic, I arrived at work on time. There are instances, however, where in time and on time can be used interchangeably. This is particularly the case when the implied meaning is not too late. For example, there was an accident on the way to work. I won't be able to get to work in time. I won't be able to get to work on time. I hope the difference is clear now. That's it for today. See you next time.