How many hours make a day answer?
There are 24 hours in a day.
There are 8 full hours between these times. It also supports the subtraction of lunch breaks and other types of pauses from the total hours in between.
8am to 4pm is 8 hours - calculate time between any two hours while you type.
There are 6 hours until tomorrow.
Modern timekeeping defines a day as the sum of 24 hours—but that is not entirely correct. The Earth's rotation is not constant, so in terms of solar time, most days are a little longer or shorter than that.
A recent study done by scientists in America has shown that days on earth are getting longer and in million years from now, a day will last 25 hours on earth. However, the process will take 200 million years in stretching hours of the day to 25 hours from 24.
The length of 8 hours is one-third of a day. The average adult should dedicate between 7 and 9 hours to sleep, so if we add up 8 hours we spend at work, all that's left is approximately 8 hours for other daily activities.
8am to 5pm is 9 hours - calculate time between any two hours while you type.
The traditional American business hours are 9:00 a.m. to 5:00 p.m., Monday to Friday, representing a workweek of five eight-hour days comprising 40 hours in total. These are the origin of the phrase 9-to-5, used to describe a conventional and possibly tedious job.
8:30 to 5:30 is 9 hours. If you take a half hour for lunch, that's still 8.5 hours. If you're working 5 days a week, that's 42.5 hours. If you're working until 6:00 each day, that's 45 hours a week.
How many hours is 7 30 to 4 00?
How many hours from 7:30 am to 4:30 pm? 9 hours.
Hours and minutes to Decimal conversion
So, 8 hours 45 minutes is 8 + 45 ÷ 60 = 8.75 hours. To convert to minutes, simply multiply the hours by 60 and add the minutes. So, 8 × 60 + 45 = 525 minutes.

The sidereal day happens each time Earth completes a 360-degree rotation. That takes 23 hours and 56 minutes. The solar day — the one humans count in the calendar — happens when Earth spins just a little further, and the sun is at the same point in the sky as it was 24 hours ago.
A day is a time taken by a celestial body to complete one rotation around its axis. On earth day, there are 24 hours. It is just an approximation because the earth day is 23 hours 56 minutes and 4.09 seconds. so it is considered as approximately 24 hours.
Day Length
On Earth, a solar day is around 24 hours. However, Earth's orbit is elliptical, meaning it's not a perfect circle. That means some solar days on Earth are a few minutes longer than 24 hours and some are a few minutes shorter.
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.
Converting Times from 12-hour clock to 24-Hour clock
In 24-hour (military) time, 12:00am is equal to 0000 and is read as “0 hundred hours”.
The 12-hour clock can be traced back as far as Mesopotamia and ancient Egypt. Both an Egyptian sundial for daytime use and an Egyptian water clock for night-time use were found in the tomb of Pharaoh Amenhotep I. Dating to c. 1500 BC, these clocks divided their respective times of use into 12 hours each.
The moon will continue to move farther away from Earth until the Earth's rotation has slowed to the point where both the Moon and Earth keep the same sides facing each other at all times. But the story doesn't end there. Earth will continue to slow down because of tides raised on Earth by the Sun.
Slowing Earth's rotation in turn speeds up the Moon's orbit, which must expand to conserve the total momentum of the Earth-Moon system. The Moon is moving away from Earth at about 1.49 inches (3.78 centimeters) per year.
How did 40-hour week start?
1926: Henry Ford introduced 40-hour work weeks with five working days with no cut in wages after he discovered that working 48-hour work weeks yielded only a small increase in productivity that lasted a short period of time. This discovery inspired other manufacturing companies to adopt the 40-hour work week.
And when the Great Depression hit in the 1930s, the U.S. Gov't saw Ford's shorter workweek as a way to fight the massive unemployment crisis – companies would need to hire more workers to get the job done. By 1940, a series of laws made the 40-hour workweek the norm in the U.S. It has been that way ever since.
80 Hours is 3 Days and 8 Hours.
Quarter after midnight means 15 minutes past midnight. It is 15 minutes past the hour 12 a.m. since midnight means 12 a.m.
9:10 a.m. It's ten (minutes) past nine a.m.
15 minutes pass 6 O'clock is 6 : 15.
Research suggests that working excessively long hours — usually this means more than 45 a week — is detrimental to your health, physical and mental, in many ways.
Working 40 hours a week has become common for many full-time employees, although different industries have their own standards and protocols that define a standard full-time schedule.
The 9-to-5 workday used to be standard for all employees, but that's quickly changing. Freelancing and self-employment are on the rise, and there's been a rapid shift toward remote work. According to Gallup, at least 45% of full-time employees work remotely at least part of the time.
8.30am to 3.30pm on the same day is actually 7 hours in length.
What time is 8 30am?
What time is 0830 Hours in Military Time? 8:30 AM in regular time on a 12-hour clock. Military format is used throughout the world (not just the military) and leverages a 24-hour time format which has been adopted by military, first responders, and hospital time setting.
7am to 4pm is 9 hours - calculate time between any two hours while you type. 7am to 4pm is how many hours? Typically, you need to find a calculator, calculate the hours worked and then copy it over.
7am to 3pm is 8 hours - calculate time between any two hours while you type.
7am to 4.30pm is 9 hours and 30 minutes.
Minutes | Decimal Conversion |
---|---|
47 | 0.78 |
48 | 0.80 |
49 | 0.82 |
50 | 0.83 |
8 hours means any consecutive 8 hours, starting at any clock hour.
What is an 8-hour shift? A full-time employee is normally required to work an 8-hour shift every day for five days in a week. This gives us 40 hours for a full work week. A shift means a specific 8-hour time period that an employee has to work in.
A year is 365.24 days long — that's why we have to skip a leap day every 100 years.
For Jurassic-era stegosauruses 200 million years ago, the day was perhaps 23 hours long and each year had about 385 days. Two hundred million years from now, the daily dramas for whatever we evolve into will unfold during 25-hour days and 335-day years.
In Earth's early history, a day was 23.5 hours and a year lasted 372 days | CNN.
Why 365 days in a year?
The Earth takes 365.25 days to complete one revolution around the Sun in its orbit. Hence, a year is considered to have 365 days.
“how many hours in 1 night?” there are 12 hours in one night.
On June 29, 2022, however, scientists measured the shortest day since records began in the 1960s – Earth had shaved 1.59 milliseconds off its usual time, and almost went on to do it again on July 26, when it knocked off 1.5 milliseconds. Apparently, Earth has actually been speeding up for a few years now.
Since the dinosaurs lived during the Mesozoic era, from 250 million years ago to 65 million years ago, day length would have been longer than 21 hours and probably closer to 23 hours. At that time the Moon would have been closer to the Earth too.
One star day is the amount of time interval after which a star appears back at its position in the night sky every night because of the rotation of the Earth. It takes a star 23 hours 56 minutes and 4.09 seconds to come back to its previous position in the sky after every night.
Under California wage and hour laws, there is no limit to the number of hours an employee can work in a single workday. They can work the full 24-hour period, if they want to. However, workers who do so are entitled to overtime pay and potentially other benefits, as well.
“Research indicates that five hours is about the maximum that most of us can concentrate hard on something,” says Alex Pang, founder of Silicon Valley consultancy Strategy and Rest and author of several books examining the links between shorter working hours and productivity.
If you are flexible, explain that you are willing to work every day of the week and additional hours if necessary. If you are ready to work in the evening or weekend, say it without any hesitation.
Our 24-hour day comes from the ancient Egyptians who divided day-time into 10 hours they measured with devices such as shadow clocks, and added a twilight hour at the beginning and another one at the end of the day-time, says Lomb. "Night-time was divided in 12 hours, based on the observations of stars.
While 25 hours is less than the 30-hour threshold to be full-time, many times a job with 25 hours still is a full-time commitment for many, and you could potentially have a difficult time managing that job and another similar part-time job together.
Is 45 hours a week a lot?
Research suggests that working excessively long hours — usually this means more than 45 a week — is detrimental to your health, physical and mental, in many ways.
A study from the World Health Organization (WHO) found that working an average of 55 hours or more each week increases your risk of stroke by 35 percent and your risk of dying from heart disease by 17 percent, compared to averaging a 35-40 hour workweek.
It's important to recognize that there can be negative health concerns that come with working a 12 hour shift. Consistently working long shifts can contribute to sleep disorders, obesity and chronic fatigue. It can be difficult to get enough sleep or stick to a regular sleep schedule.
A 50-hour workweek represents a workweek that exceeds the usual 40-hour schedule for professionals across industries. This means that instead of committing eight hours each day for five days, professionals may work 10 hours each day for five days, or work an additional sixth day to meet their 50-hour requirements.
Working for ten hours a day may exhaust some individuals. Without adequate rest, this fatigue can lead to mood and productivity changes. At the end of your workweek, you may feel tense and tired. Some individuals may initially begin work with enthusiasm, but find it challenging to maintain this schedule.
Manageable workflow: The eight-hour workday can give you plenty of time to get all of your work done. By knowing you need to get your work done within this period, you can structure your day to be more productive. Salary pay: Many salaried positions consist of eight hours per day, five days a week.
The eight-hour workday was created during the industrial revolution as an effort to cut down on the number of hours of manual labor that workers were forced to endure on the factory floor.
So how much work is too much? A recent study by the World Health Organization and the International Labour Organization shows that working more than 55 hours a week can have negative effects on your health.
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.
Day Length
On Earth, a solar day is around 24 hours.
How long is an actual day?
A day is commonly divided into 24 hours of 60 minutes, with each minute composed of 60 seconds.
References
- https://www.quora.com/How-many-hours-is-7-00am-to-4-30pm
- https://www.wikihow.com/Convert-from-24-Hour-to-12-Hour-Time
- https://www.fool.com/the-ascent/small-business/human-resources/articles/full-time-vs-part-time/
- https://www.hivedesk.com/8-hour-workday-calculator/
- https://news.ycombinator.com/item?id=12320634
- https://health.clevelandclinic.org/effects-of-working-too-much/
- https://www.firststaffnow.com/2023/02/15/the-biggest-differences-between-9-5-schedules-vs-shifts/
- https://www.splashlearn.com/math-vocabulary/am-pm
- https://www.abc.net.au/science/articles/2012/11/28/3642932.htm
- https://www.thebalancemoney.com/how-many-hours-a-week-is-full-time-employment-2063404
- https://preply.com/en/question/how-many-seconds-are-there-in-3-hours-69969
- https://www.theguardian.com/notesandqueries/query/0,5753,-1487,00.html
- https://www.tripadvisor.com/FAQ_Answers-g294260-d614961-t2807863-How_many_hours_in_1_night.html
- https://www.indeed.com/career-advice/interviewing/availability-to-work
- https://beepmyclock.com/decimal-to-hms/4.30
- https://ell.stackexchange.com/questions/5577/should-you-say-hour-or-hours-in-this-type-of-sentence
- https://www.gettysburg.edu/news/stories?id=79db7b34-630c-4f49-ad32-4ab9ea48e72b
- https://blog.talroo.com/what-is-full-time-equivalent/
- https://blaze.today/blog/hours_calculator_8_5/
- https://www.exactlywhatistime.com/24h-ampm-converter/what-time-is-17-00
- https://www.exactlywhatistime.com/military-time-converter/what-time-is-0830
- https://en.wikipedia.org/wiki/Day
- https://www.atlassian.com/blog/productivity/this-is-how-many-hours-you-should-really-be-working
- http://www.iea.usp.br/en/news/when-a-day-lasted-only-four-hours
- https://byjus.com/question-answer/8-pm-in-12-hour-format-is-same-as-20-00-hours-in-24-hour-1/
- https://www.online-stopwatch.com/hourstodays/4950-hours-to-days/
- https://www.toppr.com/ask/question/about-how-many-years-is-1000-days/
- https://www.sleepadvisor.org/3-hours-of-sleep/
- https://byjus.com/question-answer/we-consider-a-year-as-consisting-of-how-many-days-365-days366-days366-5-days364-1/
- https://en.wikipedia.org/wiki/Week
- https://jobs.washingtonpost.com/article/pros-and-cons-of-a-9-to-5-lifestyle/
- https://thcsnguyenthanhson.edu.vn/18-how-many-days-is-1-million-hours-quick-guide/
- https://weareindy.com/time-card-calculator
- https://hive.com/blog/eight-hour-workday/
- https://www.wired.co.uk/article/working-day-time-five-hours
- https://uk.indeed.com/career-advice/career-development/pros-and-cons-of-10-hour-workday
- https://blaze.today/blog/hours_calculator_7_4/
- https://maps.google.com/maps?hl=en&output=search&q=how+many+more+hours+till+8pm&entry=mc&sa=X&ved=2ahUKEwiuwevEx_L_AhVdkWoFHTqBBcoQ0pQJegQIDBAB
- https://www.bamboohr.com/resources/hr-glossary/full-time-hours
- https://wgntv.com/weather/how-do-you-define-daytime-and-evening-times-in-a-weather-forecast/
- https://beepmyclock.com/to-decimal/8h-45min
- https://www.gigacalculator.com/calculators/hours-between-times-calculator.php
- https://www.exactlywhatistime.com/24h-ampm-converter/what-time-is-19-00
- https://www.washingtonpost.com/news/speaking-of-science/wp/2017/02/24/think-you-know-how-many-days-are-in-a-year-think-again/
- https://www.abn.alabama.gov/wp-content/uploads/2018/09/7-7-8hour-10-23.pdf
- https://en.wikipedia.org/wiki/12-hour_clock
- https://www.roadmapmoney.com/10-dollars-an-hour/
- https://www.business.com/articles/the-death-of-the-workday-is-9-to-5-working-obsolete/
- https://www.inverse.com/mind-body/how-many-hours-should-you-work-per-week
- https://thcsnguyenthanhson.edu.vn/how-many-days-is-72-hours-72-hours-to-days-950piic8/
- https://www.askamanager.org/2015/10/is-8-6-the-new-9-5.html
- https://www.washingtonpost.com/national/health-science/why-in-the-jurassic-era-an-earth-day-may-have-been-only-23-hours-long/2013/09/23/a75c548a-f2dc-11e2-ae43-b31dc363c3bf_story.html
- https://en.wikipedia.org/wiki/Hour
- https://www.cuemath.com/questions/what-is-2030-military-time/
- https://timepilot.com/Help/ProEnt/Definitions/militaryTime.htm
- https://www.kqed.org/education/536039/why-do-we-still-work-40-hours-a-week
- https://www.indeed.com/career-advice/career-development/how-to-calculate-hours-worked
- https://www.quora.com/How-long-is-72-hours-from-Friday-at-9-30-am
- https://www.exactlywhatistime.com/24h-ampm-converter/what-time-is-18-00
- https://www.freecodecamp.org/news/mathematics-converting-am-pm-to-24-hour-clock/
- https://militarytimechart.com/1700-military-time/
- https://clockify.me/8-hour-workday-calculator
- https://www.nagwa.com/en/videos/969109373140/
- https://clockify.me/blog/productivity/how-to-manage-efficiently-working-80-hours-week/
- https://www.spps.org/cms/lib/MN01910242/Centricity/Domain/6212/24-Hour%20Clock%20Conversion%20Chart.pdf
- https://byjus.com/question-answer/5-hours-minutes3000-minutes-300-minutes-30-minutes-12-minutes/
- https://www.payrollsolutions.cc/minute-conversion-chart/
- https://www.cuemath.com/questions/what-time-will-it-be-in-24-hours-from-now/
- https://www.englishclub.com/efl/articles/12am-12pm-whats-the-difference/
- https://www.nidirect.gov.uk/articles/calculating-your-working-time
- https://www.online-stopwatch.com/hourstodays/80-hours-to-days/
- https://www.freshbooks.com/hub/productivity/how-to-work-16-hours-a-day
- https://www.adp.com/resources/tools/calculators/hourly-paycheck-calculator.aspx
- https://www.theforage.com/blog/basics/how-many-work-hours-year
- https://beepmyclock.com/decimal-to-hms/9.80
- https://www.commerce.gov/hr/employees/compensation/pay-periods
- https://nativenewsonline.net/advertise/branded-voices/2100-military-time-everything-you-must-know
- https://www.quora.com/How-many-hours-is-8-30-to-3-30-p-m
- https://www.indeed.com/career-advice/career-development/50-hour-work-week
- https://www.psychotherapynotes.com/how-did-we-get-here-part-1-3000-hours/
- https://www.online-stopwatch.com/hourstodays/72-hours-to-days/
- https://www.collinsdictionary.com/us/dictionary/english/nine-to-five
- https://www.varsitytutors.com/basic_arithmetic-help/addition-and-subtraction-with-time
- https://www.cuemath.com/questions/what-fraction-of-a-day-is-4-hours/
- https://spaceplace.nasa.gov/days/en/
- https://blaze.today/blog/hours_calculator_7_3/
- https://www.skillsyouneed.com/num/calculating-time.html
- https://byjus.com/question-answer/the-duration-of-a-star-day-is24-hours-6-minutes-and-4-09-seconds23-hours/
- https://blaze.today/blog/hours_calculator_8_4/
- https://www.thissimplebalance.com/1000-hours-outside-challenge/
- https://www.snagajob.com/salary-calculator?pay=16&period=hour
- https://ell.stackexchange.com/questions/8954/the-exact-time-of-evening-and-night
- https://edurev.in/question/3123235/Which-of-the-following-clocks-show-15-minutes-past-6-Orsquo-clock-a-b-c-d-Correct-answer-is-option--
- https://www.mayoclinic.org/healthy-lifestyle/adult-health/expert-answers/how-many-hours-of-sleep-are-enough/faq-20057898
- https://www.businessinsider.com/scientists-animation-reveals-earth-has-2-types-of-day-2020-9
- https://lcym.org/index.php/how-to-convert-military-time/
- https://unacademy.com/content/calculators/hour-to-minute/
- https://www.actiplans.com/blog/40-hour-work-week
- https://byjus.com/question-answer/if-you-have-to-represent-5-hours-and-45-minutes-in-hours-as-decimals-how/
- https://timepilot.com/Help/ProEnt/Definitions/MeasuringTime.htm
- https://www.zippia.com/answers/is-25-hours-a-week-part-time/
- https://www.english-4u.de/en/grammar/whats-the-time.html
- https://www.tutorix.com/question/52464/what-fraction-of-a-day-is-3-hours
- https://www.vedantu.com/question-answer/a-day-has-how-many-hours-a-12-hours-b-24-hours-c-class-10-maths-cbse-5f82c24c781fe74044ab4927
- https://getsling.com/blog/9-80-work-schedule/
- https://starpointinjurylaw.com/articles/information/work-7-days-a-week-california/
- https://www.patriotsoftware.com/blog/payroll/convert-minutes-for-payroll/
- https://www.exactlywhatistime.com/time-from/hours-left-this-year
- https://www.shouselaw.com/ca/blog/how-many-hours-can-i-legally-work-in-a-day/
- https://www.indeed.com/career-advice/career-development/work-40-hours-a-week
- https://www.timeanddate.com/time/earth-rotation.html
- https://www.indeed.com/career-advice/career-development/eight-hour-work-day
- https://militarytimechart.com/
- https://www.splashlearn.com/math-vocabulary/time/quarter-past
- https://setalarmonline.com/countdown/midnight/
- https://www.cnn.com/2020/03/13/world/early-earth-shorter-day-scn/index.html
- https://www.dazeddigital.com/life-culture/article/56730/1/earth-is-spinning-faster-what-does-it-all-mean-space-drop-second
- https://www.astronomy.com/science/ask-astro-how-quickly-is-the-moon-moving-away-from-earth/
- https://en.wikipedia.org/wiki/Working_time
- https://www.exactlywhatistime.com/24h-ampm-converter/what-time-is-08-30
- https://www.freshbooks.com/hub/productivity/how-to-work-12-hours-a-day
- https://www.online-stopwatch.com/hourstodays/1000-hours-to-days/
- https://beepmyclock.com/decimal-to-hms/5.81
- https://www.online-stopwatch.com/hourstodays/4008-hours-to-days/
- https://www.psi.edu/epo/faq/earth_moon.html
- https://blaze.today/blog/hours_calculator_730_430/
- https://www.freshbooks.com/hub/productivity/how-many-hours-do-people-work-in-a-year
- https://brainly.in/question/54104040
- https://www.abc.net.au/science/articles/2011/11/15/3364432.htm
- https://www.lsoft.com/resources/24hours.asp
- https://byjusexamprep.com/current-affairs/how-many-seconds-in-a-day
- https://ca.indeed.com/career-advice/career-development/9-to-5-job
- https://byjus.com/question-answer/there-are-24-hours-in-a-day-the-number-of-hours-in-a-week-is/
- https://www.wionews.com/world/in-million-years-days-on-earth-will-last-for-25-hours--142876
- https://en.amazingtalker.com/questions/584
- https://www.lawinsider.com/dictionary/8-hours
- https://www.indeed.com/career-advice/career-development/working-70-hour-weeks
- https://www.andersondodson.com/the-blog/do-the-math-even-8-30am-5-30pm-m-f-overtime
- https://www.forbes.com/sites/travisbradberry/2016/06/07/why-the-8-hour-workday-doesnt-work/