Figuring out how many seconds are there in a day, a week and a year one has to know a little math. To convert quantity to a different unit of measure, there is a need to figure out what is called the conversion factor and, there must be a ratio –or fraction that equals to one. In the ratio, the conversion factor is a multiplier that is applied to a larger unit to convert it into the smaller unit through multiplication. When thinking about how many seconds are there in a year, it is necessary to figure out the different units of measurement of time involved. There is the second, the minute, the hour, the day, the month and the year.
Example: The largest of these measures is the Year. To convert years to the next smallest unit- the month- it is essential to know how many months are in a year. There are 12 months in a year; hence, the ratio would be 1:12 (one year: 12 months) or 1/12. Hence, the conversion factor is 12. For instance, if one wants to know how many months are there in 5 years, one needs to multiply the number of years by the conversion factor. Five years times, 12 months/year equals to 60 months in 5 years.
To figure out the smaller units once can keep doing multiple conversions to smaller and smaller units. Keeping in mind that the units used are all the same. For instance, if there are 24 hours in each day, but not all months have the same number of days. To convert one year to seconds, it is required to skip using months and convert to days, hours, minutes and finally seconds. It is required to compute the conversion factor and then multiply. The conversion from one year to seconds would look like:
One year= 365 days (Excluding the leap year count)
1 day = 24 hours
1hour = 60 minutes
1 minute = 60 seconds
Hence, one year would equal 365 times 24 times, 60 times 60 seconds or 31,536,000 seconds.
What is the second?
A second (symbol s) is the base unit of time in the International System of Units (SI), commonly understood and historically defined as Of a day. This factor is derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each. Analogue clocks and watches often have sixty tick marks on their faces, representing seconds, and a “second hand” to mark the passage of time in seconds. Digital clocks and watches often have a two-digit second counter. The second is also a part of several other units of measurement like meters per second for Velocity, meters per second for acceleration, and per second for frequency. Multiple seconds are usually counted in hours and minutes. Fractions of a second are usually counted in tenths or hundredths. A mechanical clock, one which does not depend on measuring the relative rotational position on earth, keeps uniform time called meantime, within whatever accuracy is intrinsic to it. That means that every second, minute and every other division of time counted by the clock will be the same duration as any other identical division of time.
Fractions of seconds are usually denoted by decimal notation, for example, 2.01 seconds, or two and one-hundredth seconds. Multiples of seconds are usually expressed as minutes and seconds of clock time, separated by colons, such as 11:23:24 or 45:23. Some common units of tie in seconds (s) are: a minute is 60 seconds; an hour is 3600 seconds; a week is 604,800 seconds; a year (other than leap years) is 31,536,000 seconds; and a (Gregorian) century 3,155,695,200 seconds; with all of the above excluding any possible leap seconds. There have been three definitions of the second as a fraction of the day as a fraction of an extrapolated year and as the microwave frequency of a caesium atomic clock.
The earliest clocks to display seconds appeared during the last half of the 16th century. The second became accurately measurable with the development of mechanical clocks keeping Mean Time, as opposed to the apparent time displayed by sundials. The earliest spring-driven timepiece with the second hand which market seconds in an unsigned clock depicting Orpheus in the Fremersdorf collection, dated between 1560 and 1570. In 1832, Gauss proposed using the second as the base unit of time in his millimetre-milligram-second system of units.
Seconds in a Day calculation:
One day has 24 hours, one hour has 60 minutes and one minutes and one minute has 60 seconds, so 24 hours/day times 60 minutes/hour times 60 seconds/minute is equal to 86400 seconds/day:
1 day= 24 hours/day× 60minutes/hour × 60 seconds/minute=86400 seconds/day.
Key Tips for Time Conversions:
- The same system of measuring time is used by the whole world. The unit of time is measured in hours, minutes and seconds.
- Most often used Measurement conversions are:
- Millenniums to centuries converter: 1 millennium is equal to 10 centuries
- Centuries to Millennium's converter: 1 century is equal to 0.1 millennium
- Centuries to years converter: 1 century is equal 100 year
- Years to centuries converter: 1 year is equal to 0.01 century
- Years to days converter: 1 year is equal 364.99999999999 days
- Days to year conversions: 1 day is equal 0.0027397260273973 year
- Minutes to seconds converter: 1 minute is equal 60 seconds
- Seconds to minutes converter: 1 second is equal to 1000 milliseconds
- Milliseconds to seconds converter: 1 millisecond is equal to 0.001 second
- Microseconds to nanoseconds converter: 1 microsecond is equal to 1000 nanoseconds
- Nanoseconds to microseconds converter: 1 nanosecond is equal to 0.001 microsecond
- Milliseconds to minutes converter :1 millisecond is equal 1.6666666666666667E min
- Minutes to milliseconds converter: 1 minute is equal 60000 milliseconds
- Converting hours to minutes: 1 hour = 60 minutes, 6hours = 6*60 = 360 minutes
- Converting smaller units to larger units: 1 second = 1/60 minute
1 minute = 1/60 hour
- There are 3600 seconds in an hour. There are 60 seconds in a minute, 60 seconds in an hour, 3600 seconds in a hour, 24 hours in a day, 7 days in a week, 52 weeks in a year, 365 days in a year, 10 years in a decade, 100 years in a century, 10 decades in a century, 100000 years in an eon.
- Time Unit Converter allows converting time intervals given in different units.
- Fundamental Unit of time in the International System of Units (SI).
Conversion table for units of time:
1 min = 60 s
1 he = 60 min
1 hr = 60 min
1 wk = 7 d
1 mo = 30 d
1 yr = 12 mos = 365 days
1 century = 100 yrs
1 millennium = 1000 yrs
To convert units of measurement for time,
- Identify the units used
- Determine the relationship between the units
- Determine the conversion factor (in fraction form)The denominator should have the same unit as the original measurement
- Multiply the original measurement by the conversion factor.