Lebanon designated 25 March, the Annunciation, as an official national public holiday for both Christians and Muslims in 2010, an unusual civic gesture that rests on Mary's own standing as a revered figure in Islam as well as in Christianity, since the Quran includes an account of the angelic annunciation to Mary and devotes an entire chapter to her, giving the two religious communities that share Lebanon's population common textual ground in a figure Christians and many Muslims can each honour on the same day without either community treating the other's participation as a compromise of its own faith.
The holiday has been promoted in Lebanon specifically as a symbol of the country's religious coexistence and shared heritage rather than as an exclusively Christian observance transplanted onto the national calendar, and interfaith gatherings and joint public events are held in some Lebanese communities on the day, making Lebanon's Annunciation holiday one of the more distinctive modern examples of a specifically Christian liturgical date being deliberately reframed and adopted as a shared civic occasion in a religiously mixed society.
When 25 March falls within Holy Week or Easter Week itself, canon law does not simply move it to the nearest free day: in the current Roman calendar the feast is transferred all the way to the Monday after the Second Sunday of Easter, so that in years when the date and Easter's own movable dates collide most closely, the Annunciation can be kept as late as mid-April, a longer displacement than most transferred feasts receive elsewhere in the calendar.