Business

Uber's stock surges on positive trends despite big Q2 loss

Uber's effort to meld its pioneering ride-hailing service with food and freight delivery showed progress during the past quarter even though the company sustained a huge loss stemming from a sharp decline in its outside investments.

Business

Coinbase Global plans to cut 1,100 jobs, or 18% of staff

Coinbase Global says it plans to cut about 1,100 jobs, or approximately 18% of its global workforce, as part of a restructuring in order to help manage its operating expenses in response to current market conditions.

Business

Coinbase loses half its value in a week as crypto slumps

Cryptocurrency trading platform Coinbase has lost half its value in the past week, including its biggest one-day drop 5o date on Wednesday as the famously volatile crypto market weathers yet another slump.

Business

Airbnb says record bookings signal travel rebound

Bookings on Airbnb hit a new high in this year's first quarter, the home rental platform reported Tuesday, in a fresh signal that travel demand stifled by the Covid-19 pandemic is being unleashed.

Automotive

Volkswagen trains sights on US as profits jump

Volkswagen's first-quarter net profit almost doubled as the German automaker looked anew to the North American market to drive growth after years of muted presence there over "dieselgate", company results showed Wednesday.

Business

Amazon reports rare quarterly loss as online shopping slows

Amazon reported its first quarterly loss since 2015 on Thursday, its money-making juggernaut stalled by a slowdown in pandemic-induced online shopping and a huge write-down of its investment in an electric-vehicle startup.

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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