ISO week calendar
Week 45 2027
ISO week 45 of 2027 runs from Monday, November 8, 2027 to Sunday, November 14, 2027.
Date Time Encyclopedia answer, with calculation details and assumptions below.
ISO weeks start on Monday and end on Sunday. Week 1 is the week containing the first Thursday of the ISO week-numbering year.
Snapshot
Week 45 2027
ISO week 45 of 2027 runs from Monday, November 8, 2027 to Sunday, November 14, 2027.
ISO weeks start on Monday and end on Sunday. Week 1 is the week containing the first Thursday of the ISO week-numbering year.
- Week starts
- Monday, November 8, 2027
- Week ends
- Sunday, November 14, 2027
- ISO year
- 2027
- Weeks in ISO year
- 52
ISO week 45, 2027
- MonNov 8, 2027Week start
- TueNov 9, 20272027-W45
- WedNov 10, 20272027-W45
- ThuNov 11, 20272027-W45
- FriNov 12, 20272027-W45
- SatNov 13, 20272027-W45
- SunNov 14, 2027Week end
Method
Find the Monday of ISO week 1, then add seven days for each week after it.
ISO week context
Week 45 2027 uses the ISO week-date system: weeks start Monday, end Sunday, and week 1 is tied to the first Thursday of the ISO year.
Compare nearby ISO weeks
Adjacent week pages help verify handoffs between reporting periods, sprints, payroll periods, and weekly plans.
Related Lookups
FAQ
When does this ISO week start?
Week 45 of 2027 starts on Monday, November 8, 2027.
When does this ISO week end?
Week 45 of 2027 ends on Sunday, November 14, 2027.