Week Numbers: ISO 8601 standard week numbering is used. Week 1 is the first week with at least 4 days in the new year.
Holiday Data: Holiday information is provided by the Nager.Date API and includes public holidays for over 100 countries.
Your Location: The calendar automatically detects your country based on your location. You can change this anytime using the country selector.
View ISO 8601 week numbers (calendar weeks 1-53) and public holidays for Norway, United States, United Kingdom, Germany, France, and over 100 countries worldwide. Our free week number calendar displays national holidays, bank holidays, religious celebrations, and regional observances for years 2024-2031. Perfect for business planning, project management, vacation scheduling, and staying informed about upcoming public holidays and working weeks in your country.
What are week numbers? Week numbers (also called calendar weeks or ISO weeks) follow the ISO 8601 standard where week 1 is the first week with at least 4 days in the new year. This system is widely used in business, logistics, manufacturing, and project management across Europe and internationally.
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Se ISO ukenummer (uke 1-53) og norske helligdager for Norge og over 100 land verden over. Vår gratis ukenummer kalender viser offentlige fridager, nasjonaldager, religiøse høytider og regionale merkedager fra 2024-2031. Perfekt for ferieplanlegging, prosjektledelse, møtebooking, bedriftsplanlegging og oversikt over kommende helligdager og arbeidsuker i Norge.
Hva er ukenummer? Ukenummer (også kalt kalenderweker eller ISO-uker) følger ISO 8601-standarden hvor uke 1 er den første uken med minst 4 dager i det nye året. Dette systemet brukes mye i norsk næringsliv, logistikk, produksjon og prosjektledelse.
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Sehen Sie ISO 8601 Kalenderwochen (KW 1-53) und gesetzliche Feiertage für Deutschland und über 100 Länder weltweit. Unser kostenloser Kalenderwochen-Kalender zeigt nationale Feiertage, Bankfeiertage, religiöse Feste und regionale Feiertage von 2024-2031. Ideal für Geschäftsplanung, Projektmanagement, Urlaubsplanung, Terminvereinbarungen und Übersicht über kommende Feiertage und Arbeitswochen.
Was sind Kalenderwochen? Kalenderwochen (auch ISO-Wochen genannt) folgen dem ISO 8601-Standard, wobei KW 1 die erste Woche mit mindestens 4 Tagen im neuen Jahr ist. Dieses System wird in der Wirtschaft, Logistik, Produktion und im Projektmanagement weit verbreitet eingesetzt.
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Consultez les numéros de semaine ISO 8601 (semaines 1-53) et les jours fériés pour la France et plus de 100 pays dans le monde. Notre calendrier gratuit avec numéros de semaine affiche les jours fériés nationaux, les jours fériés bancaires, les fêtes religieuses et les célébrations régionales de 2024-2031. Parfait pour la planification d'entreprise, la gestion de projet, la planification des vacances et rester informé des prochains jours fériés et semaines de travail.
Qu'est-ce que les numéros de semaine? Les numéros de semaine (aussi appelés semaines calendrier ou semaines ISO) suivent la norme ISO 8601 où la semaine 1 est la première semaine avec au moins 4 jours dans la nouvelle année.
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Consulta los números de semana ISO 8601 (semanas 1-53) y días festivos para España y más de 100 países en todo el mundo. Nuestro calendario gratuito con números de semana muestra días festivos nacionales, días festivos bancarios, festividades religiosas y celebraciones regionales de 2024-2031. Perfecto para planificación empresarial, gestión de proyectos, planificación de vacaciones y mantenerse informado sobre los próximos días festivos y semanas laborales.
¿Qué son los números de semana? Los números de semana (también llamados semanas calendario o semanas ISO) siguen el estándar ISO 8601 donde la semana 1 es la primera semana con al menos 4 días en el nuevo año.
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Norway (Norge), United States (USA), United Kingdom (UK), Germany (Deutschland), France, Spain (España), Sweden (Sverige), Denmark (Danmark), Finland (Suomi), Netherlands (Nederland), Belgium (België), Austria (Österreich), Switzerland (Schweiz), Italy (Italia), Portugal, Poland (Polska), Canada, Australia, New Zealand, Ireland, Japan (日本), China (中国), India, Brazil (Brasil), Mexico (México), Argentina, and 75+ more countries worldwide.
Business & Professional:
ISO week calendar, business calendar, working calendar, fiscal week calendar, project planning calendar, deadline tracker, production planning, logistics calendar, delivery schedule, work week planner
Personal Planning:
Vacation planner, holiday calendar, week planner, monthly planner, year planner, family calendar, school calendar, term dates, semester planner, appointment scheduler
International Teams:
Multicountry calendar, global holidays, international week numbers, cross-border planning, remote team calendar, timezone calendar, worldwide public holidays
Regional Terms:
UK: Week numbers, calendar weeks, bank holidays | Norway: Ukenummer, helligdager, arbeidskalender | Germany: Kalenderwoche (KW), Feiertage | France: Numéro de semaine, jours fériés | Spain: Número de semana, días festivos
What week number is it today?
Use our calendar to see the current ISO 8601 week number. Week numbers range from W1 to W53 depending on the year.
How are week numbers calculated?
Week numbers follow ISO 8601 standard where week 1 (W1) is the first week with at least 4 days in January, and weeks start on Monday.
Why do Norway and Europe use week numbers?
Week numbers (ukenummer in Norwegian, Kalenderwoche in German) are standard in European business, logistics, and project management for clear communication and planning.
Can I use this for project management?
Yes! Our week number calendar is perfect for sprint planning, project milestones, delivery schedules, and tracking deadlines across international teams.