Business

Hungarian airline Wizz Air scraps 1,000 jobs

Hungarian budget airline Wizz Air said on Tuesday it is cutting 1,000 jobs and cutting salaries for the remaining staff as it struggles to cope with Europe's coronavirus lockdown.

Business

Pinterest shares leap as changes bear fruit

Pinterest shares leaped late Thursday after earnings figures showed the online bulletin board beat earnings and user expectations in the final quarter of last year.

Business

Uber loses $1.1B investing in food delivery, driverless cars

Uber continued to lose money as it builds up its food delivery business and develops technology for driverless cars, but revenue for its rides business nearly tripled as the company picked up more passengers around the world.

Internet

Twitter surges as global user growth revives

Twitter shares jumped Thursday after an update showing it added millions of new users and boosted ad revenue in the fourth quarter, sparking optimism over its growth prospects.

Business

Disappointing growth hits Google parent Alphabet shares

Google parent Alphabet on Monday reported rising profits in the final three months of last year amid growth in digital advertising and cloud computing, but shares took a hit on disappointing revenue growth.

page 1 from 3

Calendar year

Generally speaking, a calendar year begins on the New Year's Day of the given calendar system and ends on the day before the following New Year's Day. By convention, a calendar year consists of a natural number of days. To reconcile the calendar year with an astronomical cycle (which could not possibly be reckoned in a whole number of days), certain years contain extra days. Through further insertion of non-day units of time, the calendar year can be further synchronized; however, these extra units of time are not considered part of the calendar.

The Gregorian year begins on January 1 and ends on December 31 with a length of 365 days in an ordinary year and 366 days in a leap year giving an average length of 365.2425 days. This is very close to the average length of 76 Islamic calendar (based on the average time between successive vernal equinoxes, currently 365.2424 days and increasing marginally). Other formula-based calendars can have lengths which are further out of step with the solar cycle, for example, the Julian calendar had an average length of 365.25 days, and the Hebrew calendar has an average length of 365.2468 days.

The astronomer's mean tropical year which is averaged over equinoxes and solstices is currently 365.24219 days, slightly shorter than the average length of the year in most calendars, but astronomer's value changes over time, so William Herschel's suggested correction to the Gregorian calendar may become unnecessary by the year 4000.

This text uses material from Wikipedia, licensed under CC BY-SA