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half day
半日あれば資料の整理が終わる。
Half a day is enough to finish organizing the documents.
渋滞で目的地まで半日以上かかってしまった。
Due to the traffic jam, it took over half a day to reach the destination.
午前中だけ働いて半日有給を取得した。
I worked only in the morning and took half a day of paid leave.