When does the morning end and the day begins?

In fact, it is unequivocal to say whenmorning begins, hard. There are a lot of definitions - folk, astronomical, official - and each of them in its own way defines the boundaries between the times of the day. Some people generally enjoy a simple principle "When I woke up - then it's morning", so it turns out that for someone, the morning is five o'clock in the evening.

Until a person began to use artificial lighting, the morning began with the rising of the sun, and the evening with the sunset. The duration of daylight hours determinedduration of the "working day". Some people use this distinction now, but the time of sunrise and sunset is shifted depending on the time of year - the time division of the day is too fuzzy. In addition, it is unclear how to draw a line between evening and night, morning and afternoon. That is, it is clear when the morning begins, but one can not objectively determine when it ends and the day comes.

In addition, each language has its own resistant expressions associated with the time of day. For example, in Russian they say "two hoursnight ", but in most cases -" four in the morning ", that is, four hours - it's already morning, although in the winter outside the window at this time can still be a dark dark. But, unfortunately, such descriptive constructions do not help to clearly distinguish between morning and day, evening and night: it happens that someone used to say "three in the morning", and someone - "three in the morning."

And in many English-speaking (and not only) countries it is generally accepted to use 12 hour time format, and to divide the day only for two periods - up tomidday (a.m., ante meridiem) and in the afternoon (p.m., post meridiem). It is not customary for them to use descriptive constructions (although this does not mean that they do not use them at all), so the problem of time-division remains.

So it turns out that in every country, and even every person has his own subjective perception of the time of day, associated with the customs of the country and its owndaily routine. For example, most office workers associate morning with the beginning of the working day, the day with a lunch break, and the evening with the end of the working day.

But still - can you somehow bring this in a unified system, and to delineate the times of the day to clearly understand when the morning begins and ends? So many misunderstandings could be avoided!

In most European countries, a common division of the day is common. According to this division, the days are divided into four equal intervals of six hours each. It turns out that the times of day are distributed as follows:

• 
  from 0 to 6 hours - night


• 
  from 6 to 12 hours - morning


• 
  from 12 to 18 hours a day


• 
  from 18 to 24 hours - evening

Such a system is reasonable to use, for example,at business communication, when it is necessary to be 100% sure that the morning at the customer and the executor is the same: it happens that the performer is sure that he sent the work to the customer in the morning, as agreed, and the customer at that time is already a day. And how do you understand who is right, and who is to blame if everyone judges according to their criteria? For this, a pan-European system is needed - so as not to be questioned "And when the morning ends and the day begins?"