寅時

寅时
yínshí
3-5 am (in the system of two-hour subdivisions used in former times)

CEDICT

  1. (literary) the hours of the tiger (3:00am to 5:00am)
  2. the hours of the tiger (3:00am to 5:00am)

Wiktionary

舊式計時法指凌晨三點到五點。

重編國語辭典

Entry Composition

1 寅 yín
  1. 3rd earthly branch: 3-5 a.m., 1st solar month (4th February-5th March), year of the Tiger
  2. ancient Chinese compass point: 60°
2 時 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period