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1. #Calender week number how to#
2. #Calender week number windows 10#
3. #Calender week number android#
4. #Calender week number iso#

#Calender week number iso#

So if you override it to be Monday, you get ISO week numbering.Īll other locales has a minimum of 1 day for week 1, meaning the week that 1 January is in is always week 1. Portugal is the only country using minimum of 4 days for week 1, but has Sunday first.

Only the following countries follows the ISO standard of Monday first, minimum 4 days for week 1: Åland Islands, Andorra, Austria, Belgium, Bulgaria, Czechia, Denmark, Estonia, Faroe Islands, Fiji, Finland, France, French Guiana, Germany, Gibraltar, Greece, Guadeloupe, Guernsey, Hungary, Iceland, Ireland, Isle of Man, Italy, Jersey, Liechtenstein, Lithuania, Luxembourg, Martinique, Monaco, Netherlands, Norway, Poland, Réunion, Russia, San Marino, Slovakia, Spain, Svalbard & Jan Mayen, Sweden, Switzerland, United Kingdom, Vatican City The country of the locale determines this, so Czech (Czechia), English (Czechia) and even Turkish (Czechia) would still follow the standard of Czechia. It follows the CLDR standard of first day of the week (ISO: Monday) + minimum number of days for the first week (ISO: 4). If January 1st falls on a Sunday, then it is part of Week 52 of the previous year.Ĭorrect, this is based on locale. If January 1st falls on a Saturday, then it is Week 52 in a common year, but Week 53 in a leap year.

If January 1st falls on a Friday, then it is part of Week 53 of the previous year. It is also possible to determine if the last week of the previous year was Week 52 or Week 53 as follows: Week 1 of 2016 (2016W01 in ISO notation) started on Monday, 4 January 2016 and ended on Sunday, 10 January 2016, because 1 January 2016 fell on Friday. Week 1 of 2015 (2015W01 in ISO notation) started on Monday, 29 December 2014 and ended on Sunday, 4 January 2015, because 1 January 2015 fell on Thursday. If January 1st falls on a Friday, Saturday, or Sunday however, then January 1st is considered to be part of the last week of the previous year and Week 1 will begin on the first Monday after January 1st. If January 1st falls on a Monday, Tuesday, Wednesday or Thursday, then the week of January 1st is Week 1. In practice week 1 (W01 in ISO notation) of any year can be determined as follows: This system dictates that each week begins on a Monday and is associated with the year that contains that week's Thursday.

The system for numbering weeks is the ISO week date system, which is included in** ISO 8601**. You will then get an ics file containing the ISO week numbers for the years in question, which you can either import into the calendar app of your choosing, or if you upload it to dropbox and copy the raw link you can subscribe to it as a calendar feed to make it read only. Enter the year range that you want and click "Create Calendar". Save the linked file to your desktop, then run it in your browser.

#Calender week number how to#

If you really want them it's pretty easy to generate iCalendar files that effectively add ISO week numbers to any calendar app (I can show you how to do it if you like).ĮDIT: I made a little self contained HTML/JS program that does the job. In the meantime, I would keep week numbers off. I would definitely submit a bug report to Google about it.

#Calender week number windows 10#

Google Calendar on the web uses ISO numbering (The Windows 10 Calendar desktop app actually lets you pick).

#Calender week number android#

Google Calendar on my android uses the nonstandard "week containing Jan 1 = week 1" numbering, as does Samsung Calendar.