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.
The move-in day for the exhibition is next Monday.
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.