On the night of the 25th day of the tenth month of the summer calendar, the sun set at about the sixth quarter of the Shen hour, and it was dark at the unitary hour.

Between the four quarters of the unitary hour and the four quarters of the unitary hour, that is, the first watch day.

There are changes in the calendar and time development, one before the Tang Dynasty and one after the Tang Dynasty.

For Tian Xin, who has re-studied the astronomical calendar, this seems to be a big difference...... He had no idea about this development.

He had the impression that the sub-time should be calculated from zero o'clock, and the two hours between zero and two o'clock are the sub-time.

Fortunately, before Tang, he had this impression that he was fine, because the sundial was the only universal tool for measuring time.

After the Tang Dynasty, time measurement tools were developed, which could throw off the sundial. In order to take care of primary school students, and for the sake of smoothness, the correspondence between the fifth watch and the twelve hours was slightly changed.

Therefore, the first watch day after the Tang Dynasty is the entire Xu time, the Hai time after the Xu time is the second watch day, and the third watch day after the second watch.

It may be that this change was caused by the wonderful, lively, and developed nightlife of Chang'an in the Tang Dynasty, and it was necessary to divide the night time more accurately, but all this was meaningless to Tian Xin.

In fact, the 24-hour system is not difficult to promote, but there is an extra layer of subdivision compared to the 12 hours, and the day is still 96 minutes, which will not change.

Unlike the ancient reform, the 10 hours of a day and 100 minutes were changed to 12 hours and 96 minutes of a day.

If the 24-hour system is promoted, then this hour system is subdivided according to the 'hour', which is consistent with the corresponding relationship between the hour and the hour in the Northland region planned by the 'Beijing time'.

The difference is also obvious, that is, because of the time difference, the hours in various places are different from the 'Beijing time', because the longitude of the region is different from Beijing.

For example, the various armies that are now assembled in Wankou to participate in the battle are described by the hour system, that is, the sunset at 5:323 p.m. local time in Yexian County; In Beijing time, it was around 5:45 p.m.

In the case of local time, the promotion of the hour method is very simple, and it can be converted according to the sundial.

This makes it possible to break down the time and spread out the concept of minutes and seconds...... But there is a lack of accurate and convenient time tools, and the key is convenience.

In terms of hours, the Wei army started at 23 o'clock, and the various units were ready to launch a real attack, about 4 o'clock in the morning, that is, around 3 or 4 o'clock in the morning.

That night, the thin clouds covered the crescent moon, and Ma Chao was a little nervous.

Zhang Liao is very terrifying, the battle of Sun Quan Xiaoyaojin is advertised as 800 to 100,000, this is nothing in Ma Chao's eyes, this kind of battle can be fought by himself and Tian Xin.

But the battle of White Wolf Mountain is definitely Zhang Liao's battle of the gods.

Ma Chao has no confidence to fight this battle, even if he joins forces with Tian Xin and Guan Yu, there is a possibility of failure.

In that battle, Cao Cao listened to Guo Jia's suggestion to abandon his baggage, personally led the main force, crossed the mountains and mountains, returned to the back of the Wuhuan and Eryuan coalition armies, and rode on foot for a month.

In the face of the hastily assembled Wuhuan and Eryuan coalition forces, the Cao army soldiers were terrified, as long as they were defeated or drawn, they would be wiped out, and there was no way to spare.

At this critical moment, Zhang Liao asked for battle, inspired Cao Cao, Cao Cao handed over his long command to Zhang Liao, and Zhang Liao commanded the whole army to fight, and won a great victory, beheading more than 10 people and famous kings, capturing more than 200,000 Wuhuan tribesmen, and moving into the Wuhuan elite cavalry, which also completely solved the strength of the Yuan clan and ensured the safety of the back.

Zhang Liao's exploits in White Wolf Mountain were so great that he could not be rewarded in the short term, and after a long time, he was worshiped as the general of Zhengdong, which was on the same level as the Quartet generals of the Wei Kingdom, and half a level higher.

At least nominally, the Quartet generals of the Wei Kingdom were Cao Cao's vassals, while Zhang Liao and Cao Cao were still the courtiers of the Han Empire, but with a different division of labor. One is the King of Wei, Jiuci, the Han Prime Minister who enters and exits the police, and uses the honor guard of the Son of Heaven, and the other is just the general of Han Zhengdong.

It was the decisive battle of White Wolf Mountain that far exceeded expectations, and Liu Biao died of illness the following year, so that Cao Jun almost drew Jingzhou in one battle and the world in World War II had a strategic opportunity.

Zhang Liaobian County was born in Haoqiang and was proficient in the tactics of the border army...... Now there are few people like Zhang Liao who still have the inheritance of the tactics of the Han army's border army.

If Zhang Liao let go of the Wankou passage and indulged the main force of the Han army into the flat Central Plains...... Then Zhang Liao has another 350,000 cavalry, and the Han army will be very dangerous, and if there is a slight mistake, there is a possibility of being completely annihilated by Zhang Liao.

Zhang Liao is so terrible, Zhang Liao will definitely come to attack tonight, Ma Chao is a little weak-hearted.

Don't talk about him, Guan Yu and Tian Xin didn't dare to be careless, everyone came over in a group, and everyone was afraid that Zhang Liao would touch the hole cards in their hands and counteract themselves.

Ma Chao hesitated and asked the officer on duty: "Where are the guards?" ”

"Back to the public, the guards will inspect the night ban of each battalion, and they will return on the second watch."

Ma Chao took out the silk book that had already been written and handed it over: "Send it to Beifu quickly." ”

The cronies and military officials caught the lacquer-sealed silk book with both hands, and hesitated: "Your Excellency, send it now, I am afraid that it will make Beifu angry." ”

"If you don't send it, Beifu will be even angrier."

Ma Chao looked up at the gloomy and lackluster night sky: "Xiahou is righteous and open-minded, and he can understand Meng Da, Xu Zuo, and Shen Yi, and he should also be able to understand my difficulties." ”

The military officer stopped talking, ordered the fine horseman, and galloped back ten miles along the Lishui with torches in his hand into the wooden wall corridor that spread out from east to west.

After entering the Yongdao, the group of knights galloped to the Beifu camp.

The gate of the Beifu camp was closed, the guards on duty were aiming at their bows and crossbows, and the chief officer of the army on duty shouted: "Our army declares a ban, and all armies are not allowed to approach without reason!" ”

"I came from Yongdao, with a warrant from Zhao Gong, if I want to see Xiahou, please be accommodating."

"The military is tired, my family Xiahou is resting, and I order not to disturb!"

As soon as the guard raised his hand, the archer drew his bow and aimed at the knight of the Zhao Gongwei who was lighting the dark purple burqa around the campfire.

"Now that the war is coming, why is it so divided?"

Someone came to hold up the order given by Ma Chao: "Zhao Gong's warrant is here, please be accommodating!" ”

"I only recognize Xiahou Ling, not Zhao Gongling!"

"Quickly retreat, come back tomorrow!"

Seeing Ma Chao's people crossing the cordon, the defenders of Yuanmen immediately shot more than a dozen arrows in the middle of the road to show their determination.

As a last resort, they could only nail the spear to the ground and hang Ma Chao's silk book on the shaft of the spear, and the group of purple-robed knights retreated one after another.

After Ma Liang inspected the night fasting and garrison work of each battalion, he forcibly calmed down and returned to the front camp where Ma Chao was.

Ma Tan was more unlucky, when he joined the army before joining the army, the front army was resting, and the left army was fighting, and he won a great victory; After Ma Tan turned to the left to join the army, the left army retreated to Wancheng to rest.

Ma Liang was promoted to the Left Protector Army, Ma Jian avoided suspicion, did not get military merits, and was brought back to Yizhou by Zhuge Liang after saving the qualifications to join the former army and the left army.

Speaking of qualifications, Ma Yan's qualifications are really good-looking.

Ma Liang's is not bad, in the fourteenth year of Jian'an, Liu Bei was engaged in Jingzhou's pastoral expedition to Ma Liang, and in the sixteenth year Liu Bei entered Shu, Ma Liang was in Jingzhou, assisting Guan Yu to guard Jingzhou.

After the capture of Chengdu, Ma Liang was recruited by Liu Bei as the left general's mansion, and coincidentally avoided the Jingzhou Incident on the eve of the Xiangshui Alliance.

The fate of the two brothers is surprisingly accurate, and they are able to leave the army before each war and avoid it.

And now a war of this magnitude...... It can be regarded as the first battle in the true sense of Maleonn.

is facing Zhang Liao again, so Ma Liang is conscientious, he doesn't dare to be careless, and he can't wait to do everything himself.

When he returned to the camp of Ma Qianqian, he happened to meet the purple-robed knight who came in anger, and when he heard that he was calm, he waved his hand: "Wait for the first, I will arrive later." ”

The purple-robed knight rode his horse into the camp gate, Ma Liang's face was stunned, and he was about to step forward, his legs fell to the ground as soon as he was weak, and he subconsciously used his hand to support it, and his right palm was stuck on the antler thorn, and red blood gushed out in an instant.

"Ming Gong?"

"Sir?"

Personally following the staff and guards, Ma Liang was picked up, and he couldn't feel the pain in his palm for a while: "Don't panic, stop the bleeding for me." ”