Please use this on 1 minute chart, (m1 chart has least amount of bugs, verify that your timeframe do not* Sync to layouts)
With this clock indicator you can set an alert to any time you choose when opening settings, also it will fit if you like dark theme or light theme.
There are more visualization settings that can be altered inside settings for better fitting in other resolutions / monitors, like tablets, laptops, TVs, etc.