准时
zhǔn shí · HSK 4
on time
⏰ 准 = accurate + 时 = time → arriving at the accurate time
准 carries the sense of standard or accurate (think 准确 = accurate), and 时 means time or hour. Together they mean hitting the accurate time — neither early nor late, exactly on schedule.
准 — ice radical 冫 + falcon 隹
Originally written 準, meaning a water level used to check flatness, hence 'standard' or 'level.' The simplified form 准 was historically a variant used for 'permit' or 'approve.' Modern Chinese merged both senses into 准, covering 'accurate,' 'standard,' and 'to allow.'
时 — sun 日 + temple/measure 寺
Originally a phono-semantic compound: 日 (sun) gives the meaning of time or season, while 寺 (shí) supplies the sound. Early forms used 之 as the phonetic before 寺 replaced it. The core sense 'season, time, hour' has stayed stable since ancient Chinese.