Usage patterns 当とう 日じつ は 〈 場ば 所しょ 〉 に 集しゅう 合ごう する to gather at 〈場所〉 on the day (of the event)
Please gather in front of the station on the day.
当とう 日じつ 、 〈 物もの 〉 を 持じ 参さん する to bring 〈物〉 on the day (of the event)
Please bring identification on the day.
当とう 日じつ 中ちゅう に 〈 動どう 詞し 〉 to do something within that same day
Please reply within the same day.
当とう 日じつ キャンセルする to cancel on the day (of the event)
There will be a fee if you cancel on the day.
Related words その日 is a general way to say 'that day' for any previously mentioned day, while 当日 specifically points to the day of a planned event, appointment, or deadline.
当日 refers neutrally to 'the day in question' (often a scheduled event day), while 即日 stresses that something happens promptly on that very same day.
Don't confuse with· 5 前日 means 'the day before' an event, whereas 当日 means the day of the event itself, so they mark different points in the schedule.
翌日 refers to 'the following day' after an event, while 当日 refers to the day the event actually takes place.
当日 means 'the day in question', not a place, but learners can confuse it with 当地 since both attach the formal prefix 当 to a noun.
Show 2 more Show fewer 同日 means 'the same day' as another day already mentioned, while 当日 means 'the day in question' (often the day of an event), and the two are easy to mix up because of their similar kanji and readings.
当時 means 'at that (past) time', while 当日 means 'on the day in question' (e.g. the day of an event), and learners often mix up the two 当 - words.
Word family same-day ticket
same-day delivery
Etymology Compound of 当 (tō, 'this' or 'the relevant') and 日 (jitsu, 'day'). The reading とうじつ is the standard on'yomi combination.
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