How long does customs clearance really take in Guatemala (land, sea, air)?

The first Time Release Study in Central America (World Customs Organization methodology, sample from 8-Jul 14, 2019, presented in January 2020) measured: overland at Tecún Umán II,… 10.1 hours to release - of which 6.7 hours (66%) belonged to private actors (carrier and broker) and 3.4 hours (34%) to customs;… maritime (Puerto Quetzal/APM Terminals/Santo Tomás), 8.8 days on average for goods in the red channel, with 70% of the time in other actors and 30% in customs; air (Express Aéreo/COMBEX-IM) in the red channel, 12 days. The honest reading: most of the time is consumed not by the tax authority (SAT) but by the private chain (shipping line, warehouse, broker, carrier) and by permits from other agencies. The numeric tables in the PDF are images; the figures come from Prensa Libre's coverage.