Week 15 2027: April 12–18, 2027
Week 15 starts on Monday, April 12, 2027 and ends on Sunday, April 18, 2027.
Quick answer
Week 15 of 2027 is the seven-day ISO week from April 12, 2027 to April 18, 2027. ISO weeks always run from Monday to Sunday.
Use week 15 in professional planning
This permanent week reference can be used in project plans, payroll notes, weekly reports, production schedules and deadline documents. Share the week number together with the ISO year and exact date range to avoid ambiguity around New Year.
For calculations that span more than one week, use the weeks between dates calculator. For work schedules, compare the same range with the business days calculator or open the project timeline calculator.
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FAQ
What are the dates for week 15 of 2027?
The dates are April 12, 2027 through April 18, 2027.
What day does this week start?
It starts on Monday.
What day does this week end?
It ends on Sunday.
How should I write this week in a report?
Use “ISO week 15 of 2027 (Apr 12–Apr 18, 2027)” so the week-year and date range are both clear.