Date to Week Number
Get the ISO week number for any date
ISO Week Number
W06
2026-W06
Day of Week
Saturday
Day 6 of 7
Week Range
Mon - Sun
Feb 2, 2026
Weeks in Year
53
ISO year 2026
Week Boundaries
Week starts:Mon, Feb 2, 2026
Week ends:Sun, Feb 8, 2026
Week Number to Date Range
Find the date range for a specific week
Range: 1900 - 2100
Range: 1 - 53
2026-W06
Mon, Feb 2, 2026 - Sun, Feb 8, 2026
Days in Week 6
MonFeb 2, 2026
TueFeb 3, 2026
WedFeb 4, 2026
ThuFeb 5, 2026
FriFeb 6, 2026
SatFeb 7, 2026
SunFeb 8, 2026
Current Week
We are currently in
Week 6 of 2026
ISO notation: 2026-W06
About ISO Week Numbers
- ISO weeks start on Monday and end on Sunday
- Week 1 is the week containing the first Thursday of the year
- A year can have 52 or 53 weeks
- December 31 might be in week 1 of the next year
- January 1 might be in week 52 or 53 of the previous year