A solemn commemoration — which may restrict activity without closing anything.
A day of mourning marks a national loss: a disaster, an assassination, the death of a head of state. Some recur annually as fixed commemorations; others are declared at days' notice and last for a defined period.
They behave unlike other holidays. Rather than closing offices they frequently restrict: flags at half-mast, broadcasting and entertainment suspended, public events cancelled, official functions postponed. Work continues and a great deal of activity stops.
The declared kind is the hardest thing in this corpus to hold. It cannot be predicted, it is announced under pressure, and it is exactly the sort of event that invalidates a calendar somebody downloaded last month.
A recurring day of mourning, recorded as observed without closing — the pattern where activity is restricted and work continues.
| 🇦🇿 | Wednesday 20 January 2027Azerbaijan | Day of MourningSolemnly observed nationally, and an ordinary working day. |
| 🇪🇹 | Friday 19 February 2027Ethiopia | Martyrs' DayCommemorated without closing the working day. |
Days of mourning are commemorations of a solemn kind, more likely to restrict activity than to close offices.
Many days of mourning are recorded as observed-but-open, because they restrict rather than close.
See also commemorative day · observed but open · proclaimed holiday · observance
We hold this as category: commemorative, with operational_status recording what it does. See what we hold.