Set first day of week to Monday on calendar widget

[James Cox]

I could have sworn the first day of the week in the calendar widget used to be Monday.

Now it seems to be Sunday (???) and I can't find a setting to fix it.

Turning off the week-of-year would be good too. This is a pretty irrelevant feature for time tracking and with the super-low contrast theme it confuses things.

[Tomasz Dudzisz · Accepted solution]

Hello James,

Regarding to the first day of the week:

1. Administration > System > User Interface > Look and Feel
2. Scroll down to the "Date/Time Formats" section
3. Look for Use ISO8601 standard in Date Picker and select the checkbox
4. Update the field value

For the week-of-year it looks it's not possible to disable it without a deeper customization. A full documentation of the date picker is available here:

https://confluence.atlassian.com/jira/changing-the-due-date-input-format-192536.html

Tom