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.
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.