I had the 'Appearance and Personalization' / 'Display' setting set to Medium - 125% (default).Ĭhanging that to Smaller - 100% fixes the problem and as a bonus it throws the day of the week in there too, but makes things very very small. It does appear to be resolution dependent. However, there's a little more information so i'll post it here. I'm going to accept studiohack's answer since it is basically right. It may be a resolution problem perhaps? Or, your taskbar is too thin to allow for both? Try looking in the Taskbar Properties. On my widescreen system (Windx 900 resolution, small icons), I have both the date and the time: