六點半開始。

It starts at 6.30.

It starts at half past six.

Source: Tatoeba

Sentence Composition

1 六點 liùdiǎn six o'clock
2 半 bàn
  1. half
  2. semi-
  3. incomplete
  4. (after a number) and a half
3 開始 kāishǐ
  1. to begin
  2. beginning
  3. to start
  4. initial

classifier: 個