Russian

Adverb

тогда́-то • ‎(togdá-to)

1. just then
2. that was the time when; that was just when

   Тогда́-то и ну́жно бы́ло э́то ей сказа́ть‎ ― Togdá-to i núžno býlo éto jej skazátʹ ― That was just when you should have told her that.