As nouns the difference between limescale and timescale
is that limescale is a white, chalky deposit of calcium carbonate found in kettles, washing machines etc., especially in a hard water area while timescale is an alternative spelling of lang=en.
limescale
English
Noun
(
wikipedia limescale)
(
-)
A white, chalky deposit of calcium carbonate found in kettles, washing machines etc., especially in a hard water area.