Three of the five years from 2026 to 2030 place Eid Al Adha in May, and three place the Hijri New Year here as well, so the two can share a single month. Both are declared by the Cabinet after the crescent is sighted rather than worked out in advance, which is why a UAE calendar printed a year ahead carries an expected date and not a settled one.
Of the 31 days of May 2027, none is removed by a holiday fixed to a date. In the years where Eid Al Adha or the Hijri New Year falls inside May, up to five days come out — an unusually wide swing between years for the same month, and the practical reason UAE working-day totals are worked out rather than assumed.
May 2027 closes with the summer fully arrived and the school year in its final weeks. June follows with the longest days of the calendar, the Hijri New Year in two of these five years, and the start of the midday break rule for outdoor work on the 15th.