# How long is 1 year exactly?

## How long is 1 year exactly?

Who decided 24 hour day?

Hipparchus

### Which country uses mm-dd-yyyy?

According to wikipedia, the only countries that use the MM/DD/YYYY system are the US, the Philippines, Palau, Canada, and Micronesia.

How much is 24 hours in a day?

24 hours in days. 24 hours is equal to 1 day.

## What’s the date format?

The United States is one of the few countries that use “mm-dd-yyyy” as their date format–which is very very unique! The day is written first and the year last in most countries (dd-mm-yyyy) and some nations, such as Iran, Korea, and China, write the year first and the day last (yyyy-mm-dd).

Is it mm-dd-yyyy or dd mm yyyy?

National standard format is yyyy-mm-dd, casually many people use d/m yyyy or d/m -yy.

### What is the correct date format?

The international standard recommends writing the date as year, then month, then the day: YYYY-MM-DD. So if both the Australian and American used this, they would both write the date as Writing the date this way avoids confusion by placing the year first. Much of Asia uses this form when writing the date.

Is a day 23 hours and 59 minutes?

One (1) complete rotation of the Earth around its axis takes 23 hours, 56 minutes and 4.1 seconds. The average solar day is defined as 24 hours long but this average is not exactly 24 hours as measured by atomic clocks so adjustments – a leap second – are made to UTC.

## Who decided time?

Who decided on these time divisions? THE DIVISION of the hour into 60 minutes and of the minute into 60 seconds comes from the Babylonians who used a sexagesimal (counting in 60s) system for mathematics and astronomy. They derived their number system from the Sumerians who were using it as early as 3500 BC.

How do you write mm dd yyyy?

The formats d. ‘month name’ yyyy and in handwriting d/m-yy or d/m yyyy are also acceptable.) Short format: dd/mm/yyyy (Day first, month number and year in left-to-right writing direction) in Afar, French and Somali (“d/m/yy” is a common alternative).

### Why is there no 100 minutes in an hour?

Originally Answered: Why are there 60 minutes in an hour instead of 100? Simple answer: Time is not measured in metric units. By the way – The metric system dates back to the late 18th century. Thousands of years after people measured time in multiples of 60.

How is 24 hours calculated?

There are two ways of telling the time: The 12-hour clock runs from 1am to 12 noon and then from 1pm to 12 midnight. The 24-hour clock uses the numbers 00:00 to 23:59 (midnight is 00:00).

## How do I write my date of birth?

The correct format of your date of birth should be in dd/mm/yyyy. For example, if your date of birth is 9th October 1984, then it will be mentioned as

How do you write birth place?

The place of birth (POB) or birthplace is the place where a person was born. This place is often used in legal documents, together with name and date of birth, to uniquely identify a person.

### How do you write date and day together?

When writing a date, a comma is used to separate the day from the month, and the date from the year. July 4, 1776, was an important day in American history. I was born on Sunday, May 12, 1968.

How do you write the date and place?

In formal writing, always write the date in full when it is part of a sentence. This usually involves giving the day of the month, the month, and the year: The meeting will take place on April 21, 2019. Note that the year follows after a comma.