1975-1998, 1980-present (Japan)
Still used in Japan.
1998-September 2015, 1998-January 2016 (Asia)
Still used as a secondary logo.
September 2015-present, January 2016-present (Asia)
In September 2015, Circle K launched its new logo in the United States, and its slogan was changed from "Simplify Your Day" to "Take It Easy". It is also used in Asia since January 2016.