noun
the right time to do something; the moment when something must be done
Used to indicate a critical or opportune moment for an action, often in set phrases like しどころを間違える or 今がしどころだ.
今が勝負のしどころだ。
Now is the decisive moment.
しどころを間違えると、すべてが台無しになる。
If you miss the right timing, everything will be ruined.
Compound of し (the continuative form of する, 'to do') + どころ (a suffix meaning 'place' or 'time for'). Literally 'the place/time to do something'.