This icon is an image of an unfolded and not detailed map. In the bottom right corner there is a circle around the symbols "plus one" (+1).
This is a Timezone +1 icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.