大半夜

dàbànyè
the middle of the night

CEDICT

  1. late at night; deep of the night; the middle of the night
  2. most the night

Wiktionary

Entry Composition

1 大半 dàbàn
  1. more than half
  2. greater part
  3. most
  4. probably
  5. most likely
=2 夜 yè variant of 夜 yè
=2 夜 yè night