What Week: Week 22
Find the calendar dates covered by any ISO week number.
ISO Week 22 of 2026 runs from May 25 to May 31, 2026, with roughly 30 ISO weeks remaining in the year after it. ISO 8601 weeks always run Monday through Sunday and belong to the year containing that week's Thursday, which is why the first few days of January sometimes belong to the final week of the previous year. Memorial Day, the Last Day of School, Eid al-Adha fall within this week in 2026. Next year, 2027, the same week number runs from May 31 to June 6, 2027 instead, since the exact dates shift slightly every year.
As of October 1, 2026, 12:19 PM (America/New York).
Position in the Year
Week 22 falls in the first half of the year, roughly 42% of the way through 2026's 52-53 ISO weeks.
Quarter Overlap
This week sits in calendar Q2, based on its Monday (May 25).