Once you’ve done that, the taskbar will be expanded to leaves more room for the date to be displayed next the time. To add it, follow the step one and two of changing time format, i.e. By default, Windows doesn’t show the day of the week besides time and date. * Uncheck the “Use Small Taskbar Buttons” box, and click Apply > Ok button to disable the feature. Bonus Tip: Add Day of Week to the Taskbar. * Right click any blank area on the taskbar, and choose “Properties” option from menu. Here are some useful tips to fix the issues. That is caused by using the smaller buttons function if you would like to leave more room. The Date and Time (Clock) may be not visible and missing in Taskbar after the Windows 10 tablet or computer has applied the updates. But the system icons and Notifications have been turned ON in Taksbar properties and control panel and I can not figure out how to resolve the problem. When I log into system, the date and time are missing on the system tray at the lower right hand corner of the taskbar while the clock and click to desktop are gone from notification area. Windows 10 Anniversary Update brings new experiences so I upgraded my Surface Pro 3 tablet and installed AU for that.