Accidentally deleted the desktop clock, how to set the Samsung S8 mobile phone?

Mode 1: press and hold the blank position of the standby page-select widgets at the bottom of the screen-slide the screen to select widgets to add-press and drag to the home screen.

Method 2: Hold the main interface with two fingers-select widgets at the bottom of the screen-slide the screen to select widgets to add-click and drag to the main screen.

To delete a widget: Press and hold the desktop widget-click Delete in the pop-up menu.