When it comes to coordinating time on a global scale, "universal time coordinated" (UTC) is the standard. However, there are a number of synonyms or related terms that are often used in place of UTC. These include Greenwich Mean Time (GMT), Coordinated Universal Time (UTC+0), Zulu Time (Z) and World Time. Each of these terms refers to the same time system, with UTC being the most commonly recognized and used term internationally. Whether you're scheduling international meetings or tracking the movements of global events, understanding the various synonyms for universal time coordination can be extremely helpful in ensuring accurate and efficient communication.