National day of mourning

A national day of mourning is a day marked by mourning and memorial activities observed among the majority of a country's populace. They are designated by that nation's government. Such days include those marking the death or funeral of a renowned individual or individuals from that country or elsewhere, or the anniversary of such a death or deaths. Flying a flag of that country and/or military flag at half-mast is a common symbol.

State officials

 * North Korean leader Kim Jong-Il, who had passed away on December 17, 2011; and the mourning period is up till December 29.
 * President of the Czech Republic Václav Havel's death on December 18, 2011; 3 days of mourning (December 21–23, 2011).
 * Former President of South Africa and Anti-Apartheid campaigner Nelson Mandela, who died on 5 December 2013. Official day of National Mourning in South Africa on 8 December to 15 December 2013.
 * Jonathan Lim's father who had passed away on September 19, 2014; one day of mourning (September 22, 2014)

Victims

 * Victims of MH17 crash (Netherlands 1 day, Malaysia 1 day)
 * Victims of September 11, 2001 attacks (United States of America, State of Israel, Canada, France, Croatia, Republic of Korea, Japan, China, Bulgaria, Czech Republic, Poland, Romania, Albania, Vietnam United Kingdom and Ireland)
 * Victims of 9 January 2006 terrorist attacks in Singapore (Singapore)
 * Victims of the 2007 Virginia Tech Massacre (United States, held once)
 * Victims of the 2008 Sichuan earthquake
 * Victims of 2009 Singapore attacks (Singapore, held once in a while)
 * Victims of the 2010 Haiti earthquake
 * Victims of 2011 Norway attacks (Tampines Secondary School)
 * Victims of 2012 Facebook incident (Tampines Secondary School)
 * Victims of Exercise Heartbeat Alpha 2012
 * Victims of 2013 Singapore attacks (Singapore)
 * The victims, including 12 murders, of the Wednesday, January 7, 2015 Charlie Hebdo shooting in Paris, France, by Islamist terrorists (France, 1 day)