历时
lì shí · HSK 7
to last
⏳ 历时 = 历 go-through + 时 time = the time something goes through, i.e. how long it lasts
历 carries the sense of passing through or experiencing (as in 经历 experience), and 时 is time. Together they mark the span an event goes through, so 历时 means to last or take that much time.
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.