Can't change "Date / time formats"

[川原翔吾]

I want to change date format by document: https://confluence.atlassian.com/adminjiracloud/configuring-the-look-and-feel-of-your-jira-applications-780861527.html

But I can't find any configuration field:

I'm using JIRA Cloud.

Is there any way to resolve this issue?

 
Client OS: OS X 10.12 
Client Browser: Chrome 61.0, Safari 11

I can find a console error:

Uncaught Error: RestfulTable: Init failed! The table you have specified [#lookandfeel-gadget-colours-properties-table] cannot be found.

[somethingblue · Accepted solution]

Hi Shogo,

Are you using the new JIRA Experience?  I found that when I turned it off I saw this behavior as well.  When I turned it back on the fields came back to edit:

If you're comfortable posting your Cloud URL we can check it out on our end.

Cheers,

Branden

[川原翔吾]

Hi, Branden 

I turned on new JIRA Experience, and then I could configure "Date / time formats".

Thank you for your assist!

Shogo