Chanukah lights the time to light the menorah during Chanukah s immediately after night. In London this week of Chanuca, the time to light is 5pm.
ON FRIDAY AFTERNOON Erev Shabbos Chanukah lights the time to light the Menorah is BEFORE lighting for Shabbos; in London Shabbos is 3.41pm and Shabbos lighting is before 3.41pm-then the earliest time to light Chanuca Menorah lights is called plag ha’mincha which this week is 3.08pm, so please light for Chanuca lights first after 3.08pm, then light for Shabbos before 3.41pm. Good Shabbos. Happy Chanuca. Good Rosh Chodesh (two days Rosh Chodesh on Shabbos and Sunday).