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Measurement is the most important aspect of our life. We use measurement in science, engineering, business trading, personal life, education, and more other fields. As technology is growing day by day so we need a highly accurate and easy convenient global measuring system in each and every field. It is essential to use standard measurement in every field that everyone to be sure that they not get cheated.
In history for measurement people used the human body as a tool. For measuring length used forearm, hand, foot & finger as a unit. The foot, finger is a subdivided shorter unit of a length. This type of measurement is not accurate cause different in size of the arm & finger for different people & some of the countries still using it. In history, there were lots of measuring systems developed but mostly used imperial, the metric system of measurement. We use these systems for measure distances, volume, weight, speed, area etc. Due to this a major problem everyone is facing while doing trading between the countries. A huge improvement in civilization, It necessary to improve measuring standards. Nowadays International Standard (SI) units are used as a global measurement system.
Few 100 years back clock is not discovered so people use to measure time by Sunlight, Sand Clock & Sundials where used. The sand clock is a device which consists of two glass chambers. One chamber is filled up with sand, this sand will move from one chamber to other chambers in a dedicated time. Sundial is a device by this people know the time by the position of the sun. Sundial has a flat plate with gnomon ( It produce a shadow) attached to it. As the sun moves the gnomon is shows shadow in a different direction on the sundial plate by this people will know the time.
Our Unit Converter will convert the units of time Second (sec), Millisecond, Microsecond, Nanosecond, Picosecond, Minute, Hour, Day, Week, Month, Year to vice versa with a metric conversion. It specially designed to convert seconds to minutes, minutes to seconds, minutes to hours, hours to minutes, milliseconds to seconds, seconds to milliseconds, seconds to day, and more with time conversion chart.
| Unit | Definition |
| millennium | 1,000 years |
| century | 100 years |
| decade | 10 years |
| year (average) | 365.242 days or 12 months |
| common year | 365 days or 12 months |
| leap year | 366 days or 12 months |
| quarter | 3 months |
| month | 28-31 days Jan., Mar., May, Jul., Aug. Oct., Dec.—31 days Apr., Jun., Sep., Nov.—30 days. Feb.—28 days for common year and 29 days for leap year |
| week | 7 days |
| day | 24 hours or 1,440 minutes or 86,400 seconds |
| hour | 60 minutes or 3,600 seconds |
| minute | 60 seconds |
| second | base unit |
| millisecond | 10-3 second |
| microsecond | 10-6 second |
| nanosecond | 10-9 second |
| picosecond | 10-12 second |
| Unit | Length, Duration and Size | Notes |
|---|---|---|
| Planck time unit | 5.39×10−44 s | The amount of time light takes to travel one Planck length. Theoretically, this is the smallest time measurement that will ever be possible.[3] Smaller time units have no use in physics as we understand it today. |
| yoctosecond | 10−24 s | |
| jiffy (physics) | 3×10−24 s | The amount of time light takes to travel one fermi (about the size of a nucleon) in a vacuum. |
| zeptosecond | 10−21 s | Time measurement scale of the NIST strontium atomic clock. Smallest fragment of time currently measurable is 850 zeptoseconds.[1][3] |
| attosecond | 10−18 s | |
| femtosecond | 10−15 s | Pulse time on fastest lasers. |
| Svedberg | 10−13 s | Time unit used for sedimentation rates (usually of proteins). |
| picosecond | 10−12 s | |
| nanosecond | 10−9 s | Time for molecules to fluoresce. |
| shake | 10−8 s | 10 nanoseconds, also a casual term for a short period of time. |
| microsecond | 10−6 s | Symbol is µs |
| millisecond | 10−3 s | Shortest time unit used on stopwatches. |
| jiffy (electronics) | 1/60 s or 1/50 s | Used to measure the time between alternating power cycles. Also a casual term for a short period of time. |
| second | 1 s | SI Base unit. |
| minute | 60 s | |
| moment | 1/40 solar hour (90 s on average) | Medieval unit of time used by astronomers to compute astronomical movements, length varies with the season.[4] |
| ke | 14 min 24 s | Usually calculated as 15 minutes, similar to "quarter" as in "a quarter past six" (6:15). |
| kilosecond | 1000 s | 16 minutes and 40 seconds |
| hour | 60 min | |
| day | 24 h | Longest unit used on stopwatches and countdowns. |
| week | 7 d | Also called "sennight". |
| megasecond | 106 s | 277.777778333333 hours or about 1 week and 4.6 days. |
| fortnight | 2 weeks | 14 days |
| lunar month | 27 d 4 h 48 min – 29 d 12 h | Various definitions of lunar month exist. |
| month | 28–31 d | Occasionally calculated as 30 days. |
| quarter and season | 3 mo | |
| semester | 18 weeks | A division of the academic year.[5] Literally "six months", also used in this sense. |
| year | 12 mo | 365 or 366 d |
| common year | 365 d | 52 weeks and 1 day. |
| tropical year | 365 d 5 h 48 min 45.216 s[6] | Average. |
| Gregorian year | 365 d 5 h 49 min 12 s | Average. |
| sidereal year | 365 d 6 h 9 min 9.7635456 s | |
| leap year | 366 d | 52 weeks and 2 d |
| biennium | 2 yr | |
| triennium | 3 yr | |
| quadrennium | 4 yr | |
| olympiad | 4 yr | |
| lustrum | 5 yr | |
| decade | 10 yr | |
| indiction | 15 yr | |
| gigasecond | 109 s | 16,666,666.6667 minutes or About 31.7 years. |
| jubilee | 50 yr | |
| century | 100 yr | |
| millennium | 1000 yr | Also called "kiloannum". |
| terasecond | 1012 s | 16,666,666,666.6667 minutes or about 31,700 years. |
| Megannum | 106 yr | Also called "Megayear." About 1,000 millennia (plural of millennium), or 1 million years. |
| petasecond | 1015 s | About 31,700,000 years |
| galactic year | 2.3×108 yr[2] | The amount of time it takes the Solar System to orbit the center of the Milky Way Galaxy one time. |
| cosmological decade | varies | 10 times the length of the previous cosmological decade, with CÐ 1 beginning either 10 seconds or 10 years after the Big Bang, depending on the definition. |
| aeon | 109 yr | Also spelled "eon". Also refers to an indefinite period of time. |
| exasecond | 1018 s | About 31,700,000,000 years or 380,399,583,123.74 months |
| zettasecond | 1021 s | About 31.7 trillion years or 3,803,995,983,123,744.56 months |
| yottasecond | 1024 s | About 31.7 quadrillion years or 380,399,583,123,744,510 months |