Which day does the Gregorian calendar correspond to on February 14 in the first year of Northern Zhou Dynasty?

The Gregorian calendar "February 14th, 58 1" in the Han Calendar is: the year of Xin Chou, the month of Geng Yin, the day of Jia Zi, Tuesday, March 4th, and the fourth day of 1999. March 5th was a panic.

On March 4th, 58 1 year, the Sui Dynasty was established. On March 4th, 58 1 year, Emperor Wendi of Sui replaced the Northern Zhou Dynasty as emperor, changed the name of Sui Dynasty, and still took Chang 'an as the capital. On the same day, the official system was reformed and six officials in the Northern Zhou Dynasty were abolished. There are three departments, three fairs, Shangmen, civil history, secretary and civil history, and eleven monasteries, which are in charge of all kinds of state affairs.

Militarily, there are twelve temples such as Zuoyouwei Temple.

The main points of Emperor Wen's reform of the central official system are as follows:

(1) Clarify the respective functions and powers of the three provinces;

(2) Establishing the system of three provincial governors as prime ministers;

(3) Minister Cao Liu is in charge of specific government affairs.

In this way, the long-term evolution of the three provinces system was confirmed and inherited by the Tang Dynasty and influenced the early Ming Dynasty. As for the six-Cao system in Shangshu, it was used until the late Qing Dynasty. Emperor Wendi of Sui Dynasty not only reformed the central organization and established the system of three provinces and six departments, but also continued to promote agricultural development by implementing the system of equal land. Change the tax service, sort out the household registration, and ensure the national fiscal revenue; It also implemented the imperial examination system, developed the system of officers and men, and completed the process of "the integration of soldiers and farmers". These measures have effectively strengthened centralization and consolidated unity.