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).
Determine Central Time. CST converts to Central Daylight Time, or CDT, when the United States is on Daylight Savings Time from late March to early November. This impacts the conversion to GMT. Add hours to Central Time. Central Time is behind GMT. When the U.S. is on Standard Time, CST is six hours behind GMT.