Automotive

Renault bets on electric after 2020 sales slump

French auto giant Renault on Tuesday reported a sharp drop in 2020 sales amid the coronavirus pandemic, while unveiling its plans for the transition to electric- and hydrogen-powered vehicles.

Automotive

Difficult 2020 ends on an improving note for US carmakers

General Motors and Toyota reported strong US sales at the end of 2020 on Tuesday, reflecting surprisingly robust consumer demand that mitigated the sales drop for the full year in the wake of COVID-19.

Business

Delta asks more workers to take leave as travel slump widens

Delta Air Lines has managed to avoid furloughs but is now asking more employees to take unpaid leaves of absence, a sign of the deepening slump in air travel as coronavirus cases increase across the United States.

Business

Airline sector takes historic hit

The aviation industry has taken a historic hit from the coronavirus and pending an effective vaccine, can only bounce back with systematic testing, sector association IATA said Tuesday.

Business

Airline revenues forecast at half 2019 levels in 2021: IATA

Airline industry revenues are expected to remain 46 percent lower in 2021 than the $838 billion booked in the last pre-coronavirus year of 2019, industry body IATA said Tuesday in a marked worsening of its forecasts.

Business

Lufthansa loses 1.26 billion euros in third quarter

German airline Lufthansa on Tuesday reported a loss of 1.26 billion euros ($1.49 billion) in the third quarter of 2020 as it struggles to bounce back from crippling coronavirus lockdowns.

Automotive

US auto sales drop less than expected in Q3

Automakers reported better-than-expected third-quarter US auto sales Thursday, pointing to strong demand for trucks and a boost from low interest rates.

page 1 from 4

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