When I was younger in my 30’s I was able, on many occasions in the afternoon whilst the Sun was well up not at dusk, to look in a clear sky in the area of sky where I knew Venus was located and see it quite easily Once located it could be seen again for the rest of the afternoon if it stayed clear. My eyesight was good then, not so good now though. I seem to remember that I could see about 13 stars in the Pleiades.I have never been able to see Mercury with the unaided eye in the daytime but occasionally Jupiter coud be seen in really clear daytime skies. I remember the afternoon of the day after the SL9 impact pointing my telescope at Jupiter during the daytime, without circles or goto, just pointing the finder at Jupiter, which I could see with my naked eye, then to get an unexpected surprise when I looked through the eyepiece and saw the jaw dropping sight of the impact scars on Jupiter.
Denis Buczynski