![хронометр.jpg](https://gateway.ipfs.io/ipfs/QmWKnmtCPPxSpp7ZDfsvNxeyte9Q23qwPkVnZSWkzTJDR1)
Time, a quantity invented by philosophers and later taken up by physicists, is used by us everywhere and always. We simply will not be able to carry out our plans if we do not coordinate them with time. Otherwise, everything is mixed up in a huge coma chaotic deeds.
    To measure time, it is the measurement, such a device is used as a clock or the Swiss call it a chronometer. Everyone knows what a clock is, and some and how they are arranged, we are taught from a small age to understand and navigate in the testimony of the clock. The hourglass is the oldest of devices for counting time. There are many ways to determine the time - with the help of the sun, this is a water clock, a mechanical watch, quartz and electronic. But what in fact measure all these devices. The answer is very simple. For this we must remember our childhood and the game of hide and seek. 
 ![прятки.jpg](https://gateway.ipfs.io/ipfs/QmeehANQsam4d6SiUJt11i6fxZJKPWKQH1hckkZ7tC1iuJ)
Children who do not have clock, but who can count the time, turn a blind eye and just count to 5. They just make the score 1, 2, 3, 4, 5. The same actions are performed by all our watches. They just believe.
**The sandy clock** counts grains of sand.
**Chronometers**count the number of teeth on the gears.
**Quartz**and **electronic**consider electromagnetic oscillations.
**Water** amount of water leaking.
**Solar** think the distance traveled by the shadow of the clock.
It is very strange to call the fallen number of grains of TIME, or the number of revolutions of the gear. In fact, time as such does not exist, so there is no device for measuring it. Time is a conditional concept, defined physically and mathematically calculated. On the basis of this chronometer (and the other devices listed above) is a true instrument for time, which precisely counts and correctly determines the purpose of the "clock" device. Why do we need a clock? Yes, it's very simple. To coordinate our actions with these or other events, phenomena and people (and maybe animals, perhaps already they use the clock, I do not know). Everything that is invented by a person, seconds, minutes, hours, days, weeks, years has no apparent meaning in the material world. This is done by a person for the convenience of communication with other people. The whole world does not have hours and perfectly exists without them, they do not need it. It is only ours, which is implanted by us. In time, it is very important that our watches show the right time or be coordinated with other watches. The consistency of the instruments, and no matter what they think. The main thing is that all instruments are considered in unison, not faster and not slower. But our life does not change if we consider, for example, in units of **1,178,695 seconds**. We will also get used to it. Or the day will consist of **7 hours**. Very strange looking people who connect their events in life with a calendar or a clock. Things that do not affect the world in any way and do not even describe it in any way. But these devices are excellent helpers in everyday life. Having the right hours, you will never miss your date!