Current week number
Week
43
October 19 – 25, 2026
Week of a date
Dates of a week
From when to when does a week run?
Holidays this week
No public holiday falls in this week.
How week numbers work
Under ISO 8601 every week starts on Monday, and week 1 is the week containing the year’s first Thursday. That is why 1–3 January sometimes still belong to the last week of the year before: 1 January 2027 falls in week 53 of 2026.