// BBC UK NEWS — CRONACA
The druid, the weather presenter and the astronomer - when does autumn start?
When does autumn actually start and why are there three different calendars?
For most of us, autumn means falling leaves, shorter days, returning to school and the more modern tradition of pumpkin spice lattes popping up again.
But when does it officially begin? Well that depends on which calendar you follow.
Many will argue 1 September is the day the seasons change, and they are right according to the meteorological calendar.
However, in the ancient Celtic calendar we've already been in autumn since 1 August.
But it's different again for those following the astronomical calendar who say we won't officially be in autumn until 23 September.
So why do we have three calendars and in 2026 who is actually using them?
Dozens gathered at Kilkenny druid grove in August to celebrate Lúghnasadh, the beginning of Celtic autumn
At the beginning of August, dozens of people gathered in a druid grove in County Kilkenny to celebrate Lúghnasadh - the start of autumn in the Celtic calendar.
The ritual was led by Eimear Burke, Chosen Chief of the Order of Bards, Ovates and Druids which has 30,000 members around the world.