What Year Of The Animal Am I
In that location are 100 years in a century. While a century can technically describe any period of 100 years, it'due south typically defined as starting with a year that ends in one and ending in a year that ends in 00 or 100. For example, the 20th century began in 1901 and ended in 2000. The 21st century began in 2001 and will end in 2100. This measurement of fourth dimension is based on the Gregorian calendar or New Style Calendar that virtually of the world uses today.
Decades
Each century is made upward of x decades, a series of 10 years. Like centuries, decades can cover whatever menses of 10 years. But when referencing the Gregorian agenda, a decade begins in a twelvemonth that ends with one and ends with a year that ends in 0. For example, the 1990s officially began in 1991 and concluded in 2000. However, it'due south more common for people to start and end a yr before. In this case, the 1990s began in 1990 and ended in 1999.
Y ears
Both centuries and decades are made up of years. A year is a period of 12 months that begins on January one and ends on December 31. Each twelvemonth is also made up of nearly 365.25 days. Notwithstanding, most people consider a year to final only 365 days. And then, every 4 years, those four extra quarters come together to create a year that lasts 366 days. This is called a jump twelvemonth. A year is besides the period of time that information technology takes for the Earth to revolve effectually the lord's day.
M onths
Each year is divided into 12 months. Some months — Jan, March, May, July, August, October and December — are made upward of 31 days. Apr, June, September and November are made up of thirty days. Feb is typically made upward of 28 days, but during a leap year, it has an extra 29th day. The timing of the months was based on the moon'southward orbit.
D ays and Weeks
Days are periods of roughly 24 hours that start at midnight and end at 11:59 p.m. every night. Each day covers the time period it takes for the Earth to rotate on its axis. There are 7 days in a week: Monday, Tuesday, Wednesday, Thursday, Friday, Sat and Sunday. Saturday and Sunday are the weekend, while Mon through Friday are weekdays. There are 52 weeks in a twelvemonth.
S easons
Another way to measure time is by counting the four seasons: bound, summer, autumn and winter. Seasons alter based on the way the Earth tilts on its centrality equally information technology revolves around the sun. Each flavour lasts for near three months. Spring begins in March at the time of the jump equinox. Summertime begins in June at the time of the summer solstice. Fall begins in September at the fourth dimension of the autumn equinox. Winter begins in December at the fourth dimension of the wintertime solstice.
T he Gregorian Calendar
Most of today'southward measurements of time are based on the Gregorian calendar, which was fabricated official by Pope Gregory XIII in 1582. It took the place of the Julian agenda, which was found to be slightly inaccurate. Italy, Poland, Portugal and Espana were the first countries to utilize information technology. Many Protestant countries hesitated to use it considering they felt information technology was a ploy by Catholics to suppress their views. In 1752, England and the colonies that went on to course the The states adopted it. Information technology remains the nearly widely-used agenda.
Source: https://www.reference.com/science/many-years-century-4529a3117df04677?utm_content=params%3Ao%3D740005%26ad%3DdirN%26qo%3DserpIndex
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