What time is used for daylight saving time and Beijing?

At present, when people calculate the horoscope, they mostly use the conversion of time, which is actually inaccurate. China is a vast country with a time difference of more than three hours from east to west. Beijing time is the administrative time stipulated by our country, which is based on the line of east longitude 120 degrees, and east longitude 120 degrees is not about Beijing. It is located in the east of Beijing, about at Nanjing Purple Mountain Observatory.

Therefore, when calculating the eight-character time, we can't simply take Beijing time as the standard. So how can we get the right time? The answer is based on the time of birth, also known as sun time. At this time, it is related to the local time in Beijing and conversion of time. The specific conversion method is as follows: based on the line of east longitude 120 degrees, the time should be increased by 4 minutes for every increase of east longitude 1 degree. Every time 1 degree is increased westward, the time is reduced by 4 minutes.

The earth rotates from west to east by 360 degrees each time. 15 degrees is one hour per revolution. 1 every 4 minutes. It is exactly 24 hours for the earth to make one revolution. If your birthplace is east of east longitude 120, then take 120 as the benchmark. You can look up the longitude of your birthplace on the map. On the basis of east longitude 120, every increase of 1.

Time will be increased by 4 minutes on the basis of Beijing time. On the contrary, if it is east longitude 120 degrees west, it will be reduced by 1 degree. You must subtract four minutes from the time. This is the correct method for obvious solar time.