Is the Korean lunar calendar the same as that of China?

It's different. South Korea and China do not belong to the same time zone. South Korea is the East Ninth District, and China is the East Eighth District. They don't use the same meridian, so the lunar calendar is different. The lunar calendar, that is, the current traditional calendar in China, belongs to the yin-yang calendar, that is, the lunar calendar and the solar calendar. According to the change cycle of the moon phases, each moon phase changes to one month, taking the tropical year of the sun as the length of a year, and adding 24 solar terms and setting leap months to make the average calendar year adapt to the tropical year.