You are an Investor or Day Trader seriously involved with the Stock Market in another country or time zone. Your Head Office or Branch is located in another time zone within the same country.įor example, United States follows four time zones – Pacific Time (PT), Mountain Standard Time (MT), Central Standard Time (CST) and Eastern Time Zone (ET).Ĥ. Your work or business requires you to conduct online meetings with people living in other countries and time zones.ģ. You have a family, relatives or friends in another country and want to check the time before calling them on WhatsApp.Ģ. Adding multiple clocks to the taskbar on your computer can be helpful in the following cases.ġ.