Popout Clock Widget
Go to Menu > Popout Clock to open the popout clock. You can configure the popout clock in Menu > Settings > Popout Clock tab.
Popout clock is designed to be used as a widget that is always displayed on top of your desktop.
Pin / UnPin Popout Clock
Resize the popout clock by dragging its window borders. Right click on the clock and choose "Pin Clock" to pin it. When pinned, its background becomes transparent (as set in settings), its size and position is locked, and it is displayed on top of all other application windows. To unpin the clock, right click on it and choose "UnPin Clock".