entries → 即時
TSUMUGU · TOCFL C1 (est.) · 詞
即時 word · TOCFL C1 (est.)
即時 ＝ 即 ＋ 時
ㄐㄧˊ ㄕˊ · jíshí
adj/adv — real-time, immediate; at once, without delay

字源 FORM — what the parts do

即right at, at once (立即)jí
時the moment, time (時刻)shí
即時，立即的即，時間的時。
關 · Related
即時通訊jíshí tōngxùninstant messaging — the common modern collocation及時jíshíin time, just in time — same sound, but 及 means 'reach' not 'at once'