翌々日

1. Origins, structure, and basic meaning

• Structure: 翌々日 (よくよくじつ) is a formal temporal noun for the day two days after a reference date.
• Basic usage: 出発した翌々日 takes departure as its reference; 面接の翌々日 takes an interview as its reference.

2. Common pitfalls and similar expressions

• Two days after departure and two days after an interview
  • The reference event must always be identified. Unlike speech-time 明後日, the reference may be a past or future event.