Though Microsoft doesn't make showing a clock with seconds easy, it's at least possible without third-party tools.
It's possible, however, to have the best of both worlds – you can show seconds on the Windows 10 clock with a simple tweak. In Windows 10, for example, the taskbar clock doesn't show a unit smaller than minutes. While digital clocks provide a great deal of convenience, they don't always display the same level of information as an analog one.
