What value is given to each central meridian in the UTM system?

In the Universal Transverse Mercator (UTM) system, each central meridian is assigned a value based on its position within one of the 60 zones, which are each 6 degrees of longitude wide. The central meridian for each zone is typically set at the midpoint of the zone's longitude range, with values expressed in meters. For example, the central meridian of Zone 1 is at -177 degrees longitude, while Zone 60 is at 177 degrees longitude. The central meridian's value is used as a reference point for calculating coordinates within that zone.