Saturday 4 April Chungmyung Day in North Korea
Chungmyung Day falls on one of the 24 divisions of the year and represents the sky clearing up for spring.
Traditionally the day is spent tidying up graves and doing home repairs that could not be done during the winter months.
It takes place on the same date as the Ching Ming Festival (Tomb-Sweeping Day) in China which also shares rituals about ancestor worship.
