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A plan, schedule, or arrangement for an event that is expected to happen in the future. It is commonly used to discuss daily tasks, appointments, or general intentions.

Refers to the concept of time in general or a specific duration/interval between two points. It is also used as a numerical counter for measuring 'hours' in duration.

Refers to the day immediately preceding a specific event or a particular date. While 'kinō' specifically means yesterday (relative to today), 'zenjitsu' is used as the day before any reference point in time.