Google Doodle is hopping for delight on Leap Day 2020, otherwise called the 29th day of February or jump day or leap year day, that just happens about every four years, to keep our calendars in alignment with the Earth and sun.
February 29 is a date added to most years that are divisible by 4, for example, 2016, 2020, and 2024. A leap day is included different solar calendars (calendars dependent on the Earth’s revolution around the Sun), including the Gregorian calendar standard for the majority of the world. Lunisolar calendars (whose months depend on the phases of the Moon) rather include a leap or intercalary month.
In the Gregorian calendar, years that are divisible by 100, however not by 400, don’t contain a leap day. Along these lines, 1700, 1800, and 1900 didn’t contain a jump day; neither will 2100, 2200, and 2300. On the other hand, 1600 and 2000 did and 2400 will. Years containing a leap day are called leap years. Years containing a leap day are called common years.
February 29 is the 60th day of the Gregorian calendar in such a year with 306 days staying until the year’s end. In the Chinese calendar, this day will just happen in years of the monkey, dragon, and rat.
A leap day is watched on the grounds that the Earth’s period of orbital revolution around the Sun takes approximately six hours longer than 365 entire days. A leap day makes up for this lag, realigning the calendar with the Earth’s position in the Solar System; in any case, seasons would happen later than proposed in the calendar year.
The Julian calendar utilized in Christendom until the sixteenth century included a leap day every four years; yet this standard includes such a large number of days (approximately three like clockwork), making the equinoxes and solstices move bit by bit to before dates.
By the sixteenth century, the vernal equinox had drifted to March 11, and the Gregorian calendar was acquainted both with move it back by discarding a few days, and to decrease the quantity of leap years by means of the previously mentioned century rule to keep the equinoxes pretty much fixed and the date of Easter reliably near the vernal equinox.
Leap days can exhibit a specific issue in computing known as the Leap year bug, when February 29 isn’t handled accurately in logic that acknowledges or manipulates dates.