‘八点’ literally combines the numeral ‘八’ (bā, meaning ‘eight’) and the measure word ‘点’ (diǎn, meaning ‘o’clock’ or ‘point in time’). Together, they form a fixed noun phrase meaning ‘eight o’clock’, used exclusively to refer to the hour—either 8:00 a.m. or 8:00 p.m., depending on context. Unlike English, Chinese does not use ‘a.m.’ or ‘p.m.’ by default; instead, speakers rely on context, time adverbs (e.g., 早上, 晚上), or the 24-hour system for clarity.

This phrase functions as a temporal noun and commonly appears after prepositions like 在 (zài, ‘at’) or as the subject or object of a sentence. It is frequently used in daily scheduling—appointments, classes, meetings—and appears in both spoken and written Chinese. Note that ‘点’ here is not the verb ‘to point’ or the noun ‘dot’, but a specialized time marker derived from the concept of a ‘point’ on the clock face.