五月

1. Origins, structure, and basic meaning

• Structure: 五月（ごがつ） names May, the fifth month of the calendar.
• Basic usage: It identifies the month of a seasonal change or a scheduled event.

2. Common pitfalls and similar expressions

• Month name and duration
  • 五月 names a particular month, while 五か月 is a duration of five months. Distinguish a calendar position from a length of time.
• After the holiday period
  • 連休明け locates an event after consecutive holidays end. Keep that timing reference in the library example rather than replacing it with the less precise early May.