The more common larger non-SI units of time are not formed by powers of ten instead, the second is multiplied by 60 to form a minute, which is multiplied by 60 to form an hour, which is multiplied by 24 to form a day. Though SI prefixes may also be used to form multiples of the second such as kilosecond (one thousand seconds), such units are rarely used in practice. SI prefixes are combined with the word second to denote subdivisions of the second, e.g., the millisecond (one thousandth of a second), the microsecond (one millionth of a second), and the nanosecond (one billionth of a second). Seconds may be measured using a mechanical, electrical or an atomic clock. The SI definition of second is 'the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom'. It is qualitatively defined as the second division of the hour by sixty, the first division by sixty being the minute. The second (symbol: s) (abbreviated s or sec) is the base unit of time in the International System of Units (SI). In the modern metric system, hours are an accepted unit of time equal to 3,600 seconds but an hour of Coordinated Universal Time (UTC) may incorporate a positive or negative leap second, making it last 3,599 or 3,601 seconds, in order to keep it within 0.9 seconds of universal time, which is based on measurements of the mean solar day at 0° longitude. This was finally abandoned due to the minor slowing caused by the Earth's tidal deceleration by the Moon. The minor variations of this unit were eventually smoothed by making it 1⁄24 of the mean solar day, based on the measure of the sun's transit along the celestial equator rather than along the ecliptic. Its East Asian equivalent was the shi, which was 1⁄12 of the apparent solar day a similar system was eventually developed in Europe which measured its equal or equinoctial hour as 1⁄24 of such days measured from noon to noon. It was subsequently divided into 60 minutes, each of 60 seconds. Such hours varied by season, latitude, and weather. The seasonal, temporal, or unequal hour was established in the ancient Near East as 1⁄12 of the night or daytime. If you don't want to use a conversion calculator (like the one above), another basic tool is a decimal conversion chart. When you have to turn, say, 17 hours and 25 minutes in decimals, you can easily check the conversion table and see that this equals 17.42 hours.Let's see how both units in this conversion are defined, in this case Hours and Seconds: Hour (hr)Īn hour (symbol: h also abbreviated hr.) is a unit of time conventionally reckoned as 1⁄24 of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions. Manually converting employee hours and minutes to decimal values (hundredths) is time-consuming and prone to errors. Minutes to Decimals Time Conversion Chart To get her net pay, you'll have to factor in deductions and taxes. Melanie’s weekly pay based on her total hours is then: 37.7 hours x $15 = $565.50
This means that 37 hours and 42 minutes convert to 37.7 hours in decimal time. Then you have to add the converted minutes to the hours: 37 + 0.7 = 37.7 The correct calculation is thus: 42 minutes/60 = 0.7 You have to convert minutes into decimals. This is wrong since, once again, an hour is made up of 60 minutes, and not 100. However, if you take 37 hours and 42 minutes as they are, you would get 37.42. Then you need to multiply the number of hours she worked by her hourly rate to determine her weekly total pay. The hourly rate that she receives is $15.įirst, you have to take the information from her weekly time card or timesheet that contains her clock-in and clock-out times (ee timecard templates here). This week she has worked 37 hours and 42 minutes (and no overtime hours). It is also essential for keeping track of lunch breaks, general break time, overtime pay, and holidays. This is crucial for hourly staff members, who are often non-exempt employees. You need to convert time into decimal numbers to figure out your employees' exact pay rate.
Why? Because one hour contains 60 minutes, and not 100. But hours and minutes aren’t directly equal to money owed. Usually you get records of employees’ time worked in hours and minutes.
Wait…so why do I need time clock conversion?
