Whip together cream cheese, salt, garlic and dill until smooth.
Remove crusts from bread. (Save crusts for breadcrumbs or compost.) Spread bread with cream cheese mixture, layer with cucumber slices, then top with second piece of bread also spread with cream cheese. Cut into four, roughly square quarters.
I am not a health professional and nutrition data is calculated programatically. Accuracy may vary with product selection, calculator accuracy, etc. Consult a professional for the best information.