How do you pronounce 正點?

Q: How do you pronounce 正點? A: zing3 dim2, e.g.

正點 (zing3 dim2) — meaning, pronunciation, examples

正點 (zing3 dim2, zhèng diǎn) — (of a train etc) on time; punctual; (slang) awesome; (Tw) on the hour

正一 (zing3 jat1) — really; definitely; certainly; absolutely
正三角形 (zing3 saam1 gok3 jing4) — an equilateral triangle
正中間 (zing3 zung1 gaan1) — (noun) middle; centre (adjective) in the middle, central
正反面 (zing3 faan2 min6) — the positive and the negative aspects; the front and the back of something
正告 (zing3 gou3) — to sternly warn
正啱 (zing3 ngaam1) — just right for