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The Look and Feel page allows you to customize the way times and dates are presented to users throughout the JIRA user interface.

When specifying dates and times, they should be based on the Java SimpleDateFormat.

When you are not in edit mode on the 'Look and Feel' page, the examples in the rightmost column of the Date/Time Formats section show you how the various formats will appear in JIRA.

Relative time is used in date/time formats

Issue date/time fields show a relative instead of absolute date/time format (for example: "Yesterday" instead of "20 May 2013 12:00 PM"). You can still see the absolute date/time by hovering over the field.

(info) The date/time format reverts to absolute after a week.

If you want to switch off this format, set the application property to 'false'. See Advanced JIRA Configuration and Disable Relative Dates in JIRA for more information.

Configuring date picker formats

JIRA system administrators can configure the format of date pickers used throughout the JIRA user interface via options on the Advanced Settings page.

(info) Be aware that these options are different from the Date/Time Formats configuration options on the Look and Feel page, which only customize JIRA's presentation of times and dates to users.

(warning) The date or date/time formats for date pickers are defined by a pair of properties (one for Java and the other for JavaScript). The two properties in this Java/JavaScript pair must match in order for the date (or date/time) picker they define to function correctly.

Here are some example US-based date configurations:

Preferred Date

Value of the property

Value of the property

2010-10-01yyyy-MM-dd%Y-%m-%dISO 8601 format









Oct 1, 2010

MMM d, yyyy

%b %e, %Y






Here are some examples of date/time configurations:

Preferred Date/Time

Value of the property

Value of the property

2010-10-15 08:50yyyy-MM-dd HH:mm%Y-%m-%d %H:%MISO 8601 format

15/Oct/10 8:50 AM

dd/MMM/yy h:mm a

%d/%b/%y %l:%M %p


10/15/10 08:50 AM

MM/dd/yy hh:mm a

%m/%d/%y %I:%M %p

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  1. This seems rather brief, doesn't it?  What are all the code letters (y,Y,M,m,d,e) and what do they mean?  I am guessing that the sequence of letters is specific also.  E.g. MM is a 2 digit month number.

  2. I suspect that the javascript code letters are as described here:

    But it would be nice to have a more definitive reference pointed to right here.

  3. Anonymous

    The information on this page was sufficient.. However, this page took some digging

    I would have been nice to just have a quick tip to point users towards 'Administration' > 'System' > 'General Configuration' > 'Advanced' to locate the actual area where we can update the relevant values.

  4. Anonymous

    Just FYI, the value of the property should be

    %m/%e/%y %I:%M %p

    to match  

    10/15/10 08:50 AM

    What is shown currently:

    %b/%e/%y %I:%M %p


    Oct/15/10 08:50 AM