How many candles are lit on the menorahs?

For the Hanukkah-menorah, see below. (The Menorah of the Temple, however, has not been in use, and its whereabouts have been unknown, for roughly 1,940 years.)

If you're observing the festival of Chanukah, you're probably referring to the

8-branched candelabra or chanukiah (Hanukkah menorah).

Today (12-10-12) is the 2nd day of Chanukah. The 3rd day begins this evening

when the sun sets at your location, and it's then time to light three candles.

-- Evening of Tuesday, 12-11-12 . . . . . light 4 candles after sunset

-- Evening of Wednesday, 12-12-12 . . . . light 5 candles after sunset

-- Evening of Thursday, 12-13-12 . . . . . light 6 candles after sunset

-- Evening of Friday, 12-14-12 . . . . . . .

light 7 candles some time before sunset, just before the Sabbath candles.

-- Evening of Saturday, 12-15-12 . . . . .

light all 8 candles some time after twilight, when the Sabbath has concluded.