Why is the calendar of 2022.3.19,000 different from the almanac?

The time span is different. March 2022 19 calendar and the yellow calendar have different time spans: "ten thousand years" in the calendar means a large time span, but the time recorded in the calendar is still longer than that in the yellow calendar, including at least 100 Gregorian calendar, lunar calendar, dry calendar, hijri calendar, Tibetan calendar and other calendars, including the yellow calendar.