Three days later, it means from now on, the fourth day or later. Three days later: Today is the first day, tomorrow is the second day and the day after tomorrow is the third day. That is to say, today is 1, so it will be 4 in three days. Three days later is usually called 72 hours later.

Time description is usually expressed by the day before yesterday, yesterday, today, tomorrow and the day after tomorrow. More than three days means from the fourth day, excluding the third day. Three days later: not counting today, tomorrow is the first day, the day after tomorrow is the second day, and the day after tomorrow is the third day.

Mathematical data expression method

1, slash date format:

2020/0 1/02, 2020 represents the year, 0 1 represents the month, and 02 represents the day, separated by diagonal lines.

2. Horizontal bar chart date format:

2020-0 1-02, 2020 means year 0 1 means month, 02 means day, separated by horizontal lines.

3. Text date format:

202 1 0 1 02, 202 1 indicates the year, 0 1 indicates the month, and 02 indicates the day, separated by years, months and days.