Is it possible to change Date format in JIRA?

[jhensley]

I would like to go to YYYY/MM/DD, and have been eyeballing the jira.date.picker.java.formatproperty and jira.date.picker.javascript.formatproperty. Do both of these need to change the visible date format? 

[Bharath Kumar Kappala · Accepted solution]

Here is the link on various date formats supported in Jira and how they can be modified

https://confluence.atlassian.com/doc/configuring-time-and-date-formats-150144.html

[Tom Gaffney]

this question was for jira, not confluence

[Mario O.G]

@jhensley , you'd need to open: 

Administration > System > Look and Feel >Date/Time Formats

I hope that helps :)

[Nico Rusam]

Look at the advanced settings to configure the date/time pickers

https://confluence.atlassian.com/adminjiraserver/configuring-advanced-settings-938847828.html 

But be careful!