The selection of date and time for Goodtime has always been possible without a keyboard on mobile devices. On computers with a keyboard, entering data via the keyboard is generally faster, which is why this input method is offered as the default option here. However, many Goodtime users also wanted the option to select the date and time with the mouse on desktop computers. You can now choose between input methods in the settings:
Settings (small gear icon in the top right) → Personal Settings → Date and time selection with: Mouse | Keyboard