Advice 1: How to determine the time on the clock

The first mechanical clock with a dial and pointers were of the tower, and residents of medieval cities was not necessarily know how to determine time with them. It was enough to count the number of strikes – because of the advent of the new hours proclaimed the fight. Today, although widespread electronic clock, learning to tell time looking at a mechanical clock, once did not.
Your full cycle - twelve hours - "chronometer" completes twice a day
You will need
  • 1. Knowledge of the sequence of Prime numbers from 1 to 12 and their designation as "Arabic" and "Roman" traditions
  • 2. Knowledge of units of time
  • 3. Indication arrow hour
  • 4. Indication arrow minute
  • 5. Indication arrow seconds
Instruction
1
Determine which of the arrows plays a role of hour, what minute, and what counts seconds. The easiest way to "identify" second hand – it moves quickly, and track its movement on the dial can easily. The minute hand usually thinner and longer time, the latter is the most massive and short.
2
Note, the level numbers printed on the edge of the dial is the hour hand. The last digit (Arabic or Roman), the level which it had reached, and indicates the number of whole hours that have passed since the beginning of the day. If the arrow is between two numbers, so another hour has gone, but it has not yet expired.
3
Please note now, at the level of some markers is hand minute – at the place position you can find out how many minutes this hour has expired, and how much – still left. The distance from one number to the other is five minutes of time distance between smaller segments within five-minute intervals – one minute. Accordingly, if the minute hand is, for example, at the level of the number "three", it means that the hour has passed fifteen minutes, from twelve to one to five, from one to deuce – five, but from two to "three" five – fifteen.
4
Correlate the readings of the hour and minute arrows and get an accurate indication of the current time of day which may be added the testimony of the arrow used, reckoned on the same principle a compound fraction of a minute. Remember that seconds hands is supplied not all of the analog watch.
Note
In order not to obtain incorrect information about the current time of day, try on a subconscious level to distinguish between the hour and minute hands and not confuse them with each other.
Useful advice
Remember that in a clock – mechanism, maintenance and adjustment, so if their work was for some reason broken, and the data obtained then using them will be wrong.

Having the basic skills of determining time using a mechanical clock, try to bring their skills to automaticity – practice to "catch" the clock, whose glance on the position of the hands in relation to the circle of the dial, not looking at the numbers.

Advice 2 : How to determine the time

In life there are situations when people need to have knowledge of the exact time. But what if the man was in the wild without modern devices and gadgets? Without a clock to tell time is quite hard, but it is possible to know him in the stars, moon and sun - learn it.
To tell time without a clock

 

To tell time by the sun

First, you need to pay attention to the position of the sun. If you are in the Northern hemisphere should face South, if the South face to the North. If there is no compass to determine the part of the world in the following way: the sun rises in the East and sets in the West. If you are facing South, East is to the left, if you are facing North, East is to the right.

If the sun is in the sky in the center, then it is 12 o'clock noon. Possible deviations during the hour and a half, it all depends on your position relative to your time zone.

If the sun is not the center of the sky, to determine the time it will be necessary to make some calculations:

  • The morning sun is on the Eastern edge of the sky, and at noon on the West. Need to mentally divide the sky into two equal parts, separator parts is the Zenith, the highest point in the sky.
  • Now you have to understand how many hours there are between sunrise and sunset. The number will depend on the location and time of year. The days are shorter in the winter - 10 hours somewhere in the summer long - 14 hours. Fall and spring daylight is about 12 hours.
  • Further, it is necessary to divide the trajectory of the sun on the segments. The easiest way to visualize the arc that the sun moves from East to West, appearing and disappearing on the horizon. Mental arc divide by the number of segments equal to the number of hours of daylight. For example, if a day consists of 12 hours, 6 of them are located in the Eastern part of the arc, and 6 in the West!
  • If it is difficult to divide the arc into parts, you can use fists or hand (or by some improvised means). Fingering fists, count the number of fists from the beginning of the arc to the Zenith. This figure will be a half day. If you counted 9 fists, and you know what the day consists of 12 hours, respectively, then fists 9 = 6 hours. To see how much each knuckle is time, divide the hours into fists. So, 6 hours is divided by 9 the kulaks, it turns out 2/3 (about 40 minutes).
  • Determine what segment of the arc is the sun (one period is one hour). The number of segments from the Eastern beginning of the arc to the sun and it's time. The residue from the sun to the Western end of the arc is hours remaining until sunset. At first it may be a little complicated but with time you will learn how to tell time without much effort.

To tell time on the moon

Pay attention to the moon. If the moon is full, the method will work similar to the way “to tell time by the sun”. If the moon is not visible (new moon), then this option to use will not work.

The moon present in the form of a true circle, divide it into vertical strips. The number of strips is equal to the number of night hours. The first hour is the first strip on the right, and the last hour is the last bar to the left. The number of hours will depend on location and time of year.

It is necessary to consider from right to left. Define a line on the moon that crosses the boundary between its dark and light parts. Count from right to left the number of this line. If the moon moves from bright parts to dark, the band crossing will understand, when will the moon sets (sets in the West). The number of the stripes transition from dark parts to light will tell you when will the moon rise (it will appear in the East).

Now define, where is the moon in the sky. Divide as in method with the sun, an imaginary arc on the segments. For example, night lasts 12 hours, then do 12 segments. Now there are two options:

  • If the rise time of the moon, count how many she has already passed the segment. Add to this number the time of moonrise and you will get the current time.
  • If it is determined the time at which the moon, count how many she had cuts to his time in the West. Then subtract from this number the time at which the moon and get the current time.

To tell time by the stars

Determine where in the sky is the constellation the Big dipper. This can be done only being in the Northern hemisphere, cloudless sky. In the summer it is closer to the horizon.

Now it is necessary to establish the approximate time. Two stars of the Big dipper are in line with the Polar Star. This line will serve as the arrows. Polar star will perform a hypothetical center hours. Mark 6 hours is hours bottom and 12 on top. Other timestamps are also dorisovyvaet imagination. It shows an imaginary arrow, if you look to the North? For example, 2:30 - it will be a rough time.

Next you need to add to this figure of 1 hour for every month after March 7. That is, if on the calendar may 7, we must add another 2 hours. You will get 4:30. To clarify the figure, it is necessary to add or subtract two minutes for each day before or after 7 March. If today is February 2, is exactly 1 month and 5 days until March 7. Hence, it is necessary to subtract 1 hour and 10 minutes from the estimated time.

Date March 7, when timing is important because on this day the star clock shows midnight - exactly 12 hours. Therefore, this reference date is easy to adjust the time.

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