âSentry. A Sentry is a modified system monitor security program tasked with maintaining order on the Grid. Sentries wear standard black garb with red circuitry, and have black visored helmets with an open lower face below the visor. They possess identity discs, but most prefer to fight with their staffs.
Current Greenwich Mean Time (GMT) The Time Now is a reliable tool when traveling, calling or researching. The Time Now provides accurate (US network of cesium clocks) synchronized Greenwich Mean Time (GMT).
GMT is now a Time Zone. Until 1972, Greenwich Mean Time (also known as Zulu time) was the same as Universal Time (UT). The difference between GMT and UTC. Since then, GMT is no longer a time standard. Today, Greenwich Mean Time is only the name of a time zone that is used by a few countries in Africa and Western Europe, including the UK during winter and all year in Iceland.