This Timezone -2 icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,500 icons, all in the same style and quality.
It is a combination of two objects. One is a generic folded map-like object with a zig-zag top and bottom that is partially covered in dots. In the foreground is a circle with the number "-2" in the center.