Calculate the week number of any date and find the beginning and end date of a specific week of any year.
Sunday is the first day of week and saturday if the last day of the week.
The first week of the year is the week that contains january 4th, first 4 days of the year.
How is the weekly number determined?
The week number is determined according to the iso 8601 standard.
All years have either 52 or 53 weeks.
The first week of the year is the period of.
Week number according to the iso-8601 standard, weeks starting on monday.
The first week of the year is the week that contains that year's first thursday (='first 4-day week').
Plan your schedule with ease using our yearly and monthly calendars.
Access public holiday calendars for the current and upcoming years.