那時

那时
nàshí
  1. then
  2. at that time
  3. in those days

CEDICT

Entry Composition

1 那 nà
  1. (specifier) that; the; those (colloquial pr. nèi)
  2. (pronoun) that (referring to persons, things or situations)
  3. then (in that case)
2 時 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period