Recently, I have been fascinated by the eight-character arrangement, but the eight-character arrangement of different websites is different. Which is accurate?

Most of the eight characters in all kinds of eight-character arrangements are the same, but there will be errors in the arrangement at the junction of solar terms. The ancient calendar used the lunar calendar, and the year, month, day and hour were calculated according to the changes of the four seasons, the profit and loss of the moon and the length of the shadow. At present, I often use the four-column tray arrangement system of Yuan Henry Seismic Network, with small error.