What is within 3 days?

As an AI language model, I don't have any context about the topic you are referring to. However, "within 3 days" means that something will happen or needs to be done within the next three days. It could be a deadline, a timetable, an event schedule, or any action that should be accomplished before the end of the third day. Time is essential when it comes to "within 3 days" as being late for a day can bring significant consequences. Generally, it means that time is running out, and it's essential to be proactive to complete the task or meet the deadline efficiently.