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#WEEK NUMBER CALCULATOR ISO#

The first calendar week of a year is the week containing at least four days of the new year.

The previous year may be included in the first week of the current year and up to three days from the current year may be included Weeks start on a Monday and the first week of the year includes 4th of January.

#WEEK NUMBER CALCULATOR ISO#

The international ISO 8601 definition of a week is mainly used in European and Asian countries to number weeks: Select the method of week number calculation.Īvailable are "International according to ISO", "North American calculation" and the "Arabic calculation", which are described in detail below.Ĭalculation methods supported by the Week Number Calculator International calculation according to ISO Please enter the year of the week number for the calculation of week start and week end. Please enter the week number for the calculation of week start and week end. Week number entries / calender week Week number Please enter the year for the week number.

Please enter the month for the week number calculation. Please enter the day, i.e., the day of the month for calculating the week number. Please select the value that you want to calculate.Īfter selecting "Week number", the week number is calculated for the entered date.Īfter selecting the "start and end of a week number" the start and end date for the entered week number are calculated. Tips for making entries in the Week Number Calculatorĭepending on the selection made in the input of the calculator, different input fields open, which we describe in the following. In the navigation, you can select each individual calendar week or, for example, all historical On the special page Current Calendar Week, you will always find See below for more on the calculation method of American calendar weeks. The following table shows all "American" calendar weeks 2022, with their start date beginning on Sunday and their end date falling on Saturday.

Table of all current American calendar weeks

See below for more on the calculation method of the ISO calendar weeks. European and Asian ISO calendar weeks 2022 - CW 2022 The following table shows all ISO calendar weeks 2022 from 1 to 53, with their start date beginning on Monday and their end date falling on Sunday. Table with all current European and Asian ISO calendar weeks Calendar Week Calculator for calculating all current weeks.Table with all current ISO calendar weeks mainly used in America, Australia and Japan.Table with all current ISO calendar weeks mainly used in Europe and Asia.