From Longman Dictionary of Contemporary Englishtwinklingtwin‧kling /ˈtwɪŋklɪŋ/ noun → in the twinkling of an eye
Examples from the Corpus
twinkling• All that has passed has, in the pattern of the old grandmother-tales, taken but a twinkling.• But stop pushing me, stop expecting me to change in the twinkling of an eye.• But in the supernatural universe the Great Battle was won in the twinkling of an eye.• In the twinkling of an eye they were safe inside with their friends. 