What time is it at 1 1 in the evening?

23 o'clock (at night 1 1 point) is the time boundary, which is the boundary between the stone sea of the previous day and the sub-hour of the next day. Because Shihai is the last hour of the day, 23 o'clock is also the boundary of the day.

If it is just after 23 o'clock, it can be regarded as midnight and the day after. For example, today is Mao Yi Day, and the last hour is the sea time, from 2 1: 00 to 22: 59: 59 in the evening. When you step into 23: 00: 00, it belongs to "tomorrow", that is, Chen Bingri and noon. -This is the first level and the most basic concept, which must be clear.

You must pay attention to this time, not the time of your watch, but the angle between the sun and the longitude of the earth, so-called how many degrees at the zenith and how many degrees at the bottom of the sky. Still don't say too many astronomical figures, everyday. In ancient times, we used sundials to determine the time. A sundial is to put something with a scale on the ground and insert a needle on it. The shadow of the sun shining on the pointer is reflected on the scale, thus determining the time (Baidu search can find many pictures). So the principle of the sundial is actually to use the angle of the sun relative to the ground, and this angle must be used when determining the time.

But the problem is that we may not have this instrument, and there is no sunlight at night (in fact, the ancients still have formulas to convert). How do we calculate?

In fact, the "Beijing time" we use is the time of east longitude 120 (not the time of Beijing), and most of our birthplaces are not in the area of east longitude 120. The time measured when the sundial was placed in your birthplace does not coincide with Beijing time. That is to say, if we put the sundial at east longitude 120 (about in Hangzhou), the time reflected by the shadow of the sundial pointer is exactly the same as the Beijing time of our clocks. Therefore, unless you are in a place like Hangzhou with east longitude 120, we all use a time that does not belong to our region. Therefore, we need to convert this clock time back to our local time (that is, the local sun angle).

If your city of birth is Wuhan, which is about east longitude 1 14, and the place you use is 6 degrees more than your place of birth, then 1 equals 4 minutes (24 hours divided by 360 degrees), that is, your time is 24 minutes faster than your own, so you must adjust it back. When you use Beijing time in Wuhan, you must start to enter the time at 23: 24, and it will still be Shihai before 24: 00. This is the second level, at least in this way, our time is called basically accurate.

Similarly, if you were born in Los Angeles, you must adjust the time from western time to local time.

However, the rotation of our earth is not entirely driven by the sun. There are many stars around the earth, and they will pull each other. This is the law of universal gravitation. It's just that those stars are not very big, not very close, and the force is relatively small. But the force still exists, so we don't actually have a whole day. Sometimes we only have 23 hours and 58 minutes 16 seconds a day, and sometimes we have 24 hours, 2 minutes and 3 seconds ... so when we calculate the time, one day it may be two minutes earlier and one day it may be three minutes later. Take the birth in Wuhan as an example. If there are 24 hours, 2 minutes and 3 seconds on that day, it will not enter the time until 23: 26: 3. -this is the third level, and it must be calculated to the third level to be completely accurate.

However, this time is difficult to calculate, and it needs a bunch of astronomical constants to calculate. Or use the equation curve to predict. Anyway, some astronomical methods, even astronomers, have to calculate by hand for a long time, usually with the help of computers. So, sometimes we just ignore these minutes. As long as your birth time is not exactly 23 o'clock after calculating the second level, it is generally not necessary to calculate the third level.

Ps: In addition, after the Qing Dynasty, Wei Zidou's books began to be used by many people. Wei Zidou's books were divided into early children and late children, which were different from the traditional Zi Ping eight characters. Although it is still midnight after 23 o'clock, if it is not past 24 o'clock (0 o'clock), it belongs to the previous day and is called the late night of the previous day. After 24 o'clock, it is called the next morning. The division of the sky is slightly different from that of the sky, but usually the ancient people take the sky as the boundary of the sky, that is, 23 o'clock is the boundary of the sky.

Generally speaking, if you want to tell fortune, the most important thing is that you provide accurate date, time and minute of birth, latitude and longitude of birthplace (or just provide the city for the fortune teller to check for you).

Personally, I hate it when netizens say they will come whenever they want. "What time is it?" I'm in charge, not you. Only the hour, minute and place of birth, these are your decisions. So, just express your information accurately.