いっさくさくじつ一昨昨日issakusakujitsuさきおとつい一昨昨日sakiototsuiさきおととい一昨昨日sakiototoiいっさくさくじつ一昨々日issakusakujitsuさきおとつい一昨々日sakiototsuiさきおととい一昨々日sakiototoi
1.
The day that comes before yesterday, representing a point in time that is two days prior to the current reference day.
2.
A term used to denote the day that is three days before today, often conveying a sense of a distant past relative to the present moment.
3.
This refers specifically to the day preceding the day known as the day before yesterday, emphasizing a historical context relative to recent days.