which night is it 2nd or 3rd?

[Solaris]

Today is December 23 Tuesday.
Is this the third Chanukka night or the second?

So the calendar states that the holiday starts on dec 22 and runs to 29. Except that it actually begins at sundown on the 21st. So on the 23 I should burn 3 candles, right?

 

[Henaynei]

evening of 12/23 is/was the third night, on which three candles (plus the servant candle) are lit

 

[Solaris]

Thank you that is what I thought.