The 8 days of Chanukah always start on the 25th of Kislev; the first candle being lit on the 24th in the late afternoon.
This year Chanukah starts on Wednesday, 21st December 2011. We will light the first flame on Tuesday afternoon, 20th Dec.
A week later - (Tuesday afternoon, 27th Dec) we will light all 8 flames for the 8th day of Chanuka.
On weekdays the Chanukah lights should be lit at nightfall and should be able to burn for at least 30 minutes.
Chanukah lights can already be lit from Plag HaMincha (75 Halachic minutes before nightfall).
Even when lighting earlier, the Menorah has to burn until 30 minutes after nightfall.
Source: Kitzur Shulchan Aruch 139:1, 10
There are 2 opinions regarding nightfall: Some say it refers to dusk, other say it refers to 3 stars appearing (like Motzai Shabbat). Everybody should follow their family custom.
Tuesday, 10 Kislev 5772
Don't forget to add "וְתֵן טַל וּמָטָר לִבְרָכָה"!
Tuesday, December 6, 2011
Posted by Danny Schoemann at Tuesday, December 06, 2011