This is the Countdown Clock icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
It's the image of a clock face with the number "12" written in the center. Around the clock face are the dots where the numbers of a clock would go. The circle that encloses the clock face is actually a circular arrow drawn around the clock. The arrow is pointing counter clockwise to indicate time going backwards twelve hours.