Right phonetic residue
寸 (cùn) — provides a degraded sound link to shí through the simplification. Traditional
時 had
寺 (sì, temple) on the right as full phonetic; the simplified
时 trimmed
寺 to just its
寸 base, weakening the phonetic link but preserving the visual hint.
寸 standalone means 'inch' or a tiny measure.