What does the alternate year imperial calendar mean? What is the pronunciation of the imperial calendar every other year?

Last year's calendar-something out of date

pronounce

Gnian Juangley

translate freely

Imperial calendar: originally refers to the almanac promulgated by the Qing court, and later refers to the almanac. One year after the Gregorian calendar. In the new situation, we will no longer compare outdated things or old experiences.

source

There is no source for next year's imperial calendar.

for instance

Last year's calendar-something out of date