These are, Atlantic Standard Time (AST), Eastern Standard Time (EST), Central Standard Time (CST), Mountain Standard Time (MST), Pacific Standard Time (PST), Alaska Standard Time (AKST), Hawaii-Aleutian Standard Time (HAST), Samoa Standard Time, and Chamorro Standard Time.What is global time zone?
Global Time Zones. Time Zones are regions on Earth that use the same local time. Conventionally, people compute their local time as an offset from UTC (Coordinated Universal Time). UTC replaced GMT (Greenwich Mean Time) in 1972 as the time standard.What is the world standard time?
UTC is the time standard commonly used across the world. The world's timing centers have agreed to keep their time scales closely synchronized - or coordinated - therefore the name Coordinated Universal Time.What does GMT mean?
“GMT” stands for Greenwich Mean Time. It is the standard time in Britain. The UK puts the clocks back and forward by one hour in the year to account for the different lengths of days during the year. This takes Britain off GMT for the summer, in which period, it is on BST, which is British Summer Time.