(にはくみっか)

にはくみっか
noun
three days and two nights
time-period
1. three days and two nights, a two-night trip
A trip or stay lasting two nights and three days. A very common way to describe trip duration in Japanese, counting nights stayed rather than just days.
二泊三日(にはくみっか)京都(きょうと)()
I'm going to Kyoto for a two-night, three-day trip.
二泊三日(にはくみっか)旅行(りょこう)プラン()てた
I made a plan for a three-day, two-night trip.
The school trip is planned as a three-day, two-night tour of Nara and Osaka.

二泊三日(にはくみっか) is composed of 二泊(にはく) (two nights' stay) + 三日(みっか) (three days).

Pattern: The format X(はく)Y(にち) is the standard way to express trip duration in Japanese:

The number of nights is always one less than the number of days.

Usage: This is the most common format for describing trip length in Japan. It appears in travel brochures, hotel bookings, and everyday conversation. 二泊三日(にはくみっか) is perhaps the most popular duration for domestic weekend trips.