1975–1998, 1980–present (Japan)
1998–2015, 1998–2016 (Asia)
Still used as a secondary logo.
2015–present, 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 introduced in Asia in January 2016.