The map displays lines of longitude labeled with degrees and directions (e.g., 'к западу от Гринвича', 'к востоку от Гринвича'). Identify the approximate longitude range shown on the map.

The map displays lines of longitude from approximately 180° to 180°, covering the entire globe. The labels 'к западу от Гринвича' (west of Greenwich) and 'к востоку от Гринвича' (east of Greenwich) indicate the division along the Prime Meridian (0° longitude).