Garbage day; the scheduled day for rubbish collection (often specified by weekday and type such as burnable/non-burnable/recyclables).
今朝はゴミの日だから、燃えるゴミを出してきた。
Since it's garbage day this morning, I took out the burnable trash.
引っ越し先のゴミの日を自治体のホームページで確認した。
I checked the garbage collection days for my new address on the city website.
資源ごみのゴミの日は毎週水曜日です。
Recyclables collection day is every Wednesday.