found it at 4.03

following on from last week, and with clear skies, i have the natwest
tower to the south, between me and where i last saw it, plus planes
flying into LHR on the cross-london flightpath, so i thought it should
be fairly easy to locate; and voila, with the sun still clear in the
western sky, there was Venus shining brightly in the afternoon sky at
three minutes past four this afternoon! according to the times, todays
london sunset time was 4.17.

cheers