夜　時　分　半　枚

夜 combines a person sheltering under a roof (宀) with the moon (月) visible outside — the moment a person retreats indoors as night arrives. The moon element anchors it firmly to nighttime.

時 combines 日 (sun) on the left with 寺 (temple) on the right. In ancient Japan and China, temple bells rang to mark the hours — the sun moves across the sky, the bell rings, and time is measured.

分 shows a knife (刀) splitting something in two (八). The core meaning is to divide or separate — from which came 'a portion', 'to understand' (dividing meaning apart), and 'minute' (a division of an hour).

半 depicts an ox (牛) being split down the middle — the ancient image of dividing something whole into two equal halves. In time-telling, 三時半 means 3:30 — literally "three hours, half".

枚 combines 木 (wood) with 攴 (a hand striking a stick) — originally a wooden tally stick used to count items. It became the counter for all thin, flat objects: paper, stamps, plates, T-shirts, coins.