In Ireland, the October Holiday (sometimes called the October Bank Holiday, Irish: Lá Saoire i Mí Dheireadh Fómhair or Lá Saoire Oíche Shamhna) is observed on the last Monday of October, that is between 25 and 31 October. Usually, but not always, this is the day after the transition from Irish Standard Time (UTC+1) to Irish Winter Time (UTC+0). It was introduced in 1977.
