Usage note
后天是指从今天开始的第二天。例如,如果你今天是星期一,那么后天就是星期三。
hòu tiān shì zǐ cuò kě yǐ de dì èr tiān. rú guǒ nǐ jīntiān shì xīngqī yī, nàngāng hòu tiān jiù shì xīngqī sān.
后天 refers to the day after tomorrow. For example, if today is Monday, then the day after tomorrow would be Wednesday.