Hepatitis B virus, abbreviated HBV, is a species of the genus Orthohepadnavirus, which is likewise a part of the Hepadnaviridae family of viruses. This virus causes the disease hepatitis B.he early evolution of the Hepatitis B, like that of all viruses, is difficult to establish. The divergence of orthohepadnavirus and avihepadnavirus occurred ~125,000 years ago (95% interval 78,297â313,500). Both the Avihepadnavirus and Orthohepadna viruses began to diversify about 25,000 years ago.
Daylight Saving Time (DST) was first used in Germany in 1916. Clock in Prague, the Czech Republic. Many countries in Europe change their clocks to observe daylight saving time on the last Sunday of March each year. Pictured above is a clock in Prague, the Czech Republic's capital city.
US States and Territories Without DST. States and territories in the United States that do not observe daylight saving time, aside from most of Arizona, include: Hawaii, American Samoa, Guam, Puerto Rico, and the Virgin Islands.Some parts of Indiana did not observe daylight saving time in the past.rizona Time History. As a result of the Energy Policy Act of 2005, many parts of the United States observe Daylight Saving Time (DST) on the second Sunday in March until the first Sunday in November. The Act does not alter the rights of the states and territories that choose not to observe daylight saving time.