What Week: Week 49
Find the calendar dates covered by any ISO week number.
ISO Week 49 of 2026 runs from November 30 to December 6, 2026, spanning two calendar months, with roughly 3 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. St. Nicholas Day, Cyber Monday, Hanukkah fall within this week in 2026. Next year, 2027, the same week number runs from December 6 to December 12, 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 49 falls in the second half of the year, roughly 94% of the way through 2026's 52-53 ISO weeks.
Quarter Overlap
This week sits in calendar Q4, based on its Monday (November 30).