noun
move-in day; delivery day; day for bringing in exhibits
Refers to the designated day(s) when items, exhibits, or goods are to be brought into a venue, such as an exhibition hall, museum, or event site.
展示会の搬入日は来週の月曜日です。
The move-in day for the exhibition is next Monday.
搬入日には、業者が朝早くから会場に集まります。
On the delivery day, contractors gather at the venue from early morning.
搬出日 is the day for removing exhibits or goods, the opposite of 搬入日.
Compound of 搬入 (carrying in, delivery) and 日 (day). The exact historical derivation is uncertain, but the word follows a common pattern for scheduling terms.