America/Monterrey is a timezone and its consensus geometry is derived from woedb.
{"mz:is_ceased":0,"geom:latitude":25.639756,"wof:name":"America/Monterrey","counts:names_total":1,"wof:placetype":"timezone","gp:source":"geoplanet 7.6.0","mz:is_current":-1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633293,"timezone_id":102047431}],"mz:is_deprecated":0,"lbl:latitude":26.72964,"geom:area":34.707526,"geom:longitude":-102.035405,"wof:id":102047431,"counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1566655573,"wof:fullname":"America/Monterrey, Mexico","wof:belongsto":[102191575,85633293],"wof:concordances":{"gp:id":56043601},"mps:latitude":26.72964,"wof:repo":"whosonfirst-data-admin-xy","wof:lang":["eng"],"src:geom":"woedb","wof:country":"","counts:names_preferred":1,"src:geom_alt":[],"geom:area_square_m":3.867540982128612E11,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"","counts:names_languages":1,"geom:bbox":"-107.124733,22.213886,-97.200417,29.557914","name:eng_x_preferred":["America/Monterrey"],"mps:longitude":-101.698779,"src:lbl_centroid":"mapshaper","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-101.698779,"wof:geomhash":"6ee22aa713a5379f643e96a39a30cfc7","wof:parent_id":85633293,"wof:placetype_names":["timezone"],"mz:hierarchy_label":1,"wof:placetype_id":136057795,"edtf:cessation":"uuuu"}