Date Histogram - Date Format Change

[Surya_Raviraj]

I am currently using a date histogram for my visualization. Unfortunately, the date format seems to default to "yyyy-MM-dd". I would like to Modify it to "MMM-yyyy". I've applied that change on the field but I think while using date histogram it doesn't pick up that change. How can I accomplish this?

[Tomo_M (Tomohiro Mitani)]

I tried Change Kigana > Advanced Settings > General > Date format, but not worked in date histogram visualization.. And I couldn't find any settings in visualiations, sorry.

[ghudgins (Graham Hudgins)]

I would use a runtime field for this - we need to implement https://github.com/elastic/kibana/issues/67206 before we have the native support.

as an example runtime field you could do something like below but rather than e as your format you could select one from this list

ZonedDateTime input = doc['timestamp'].value;
String output = input.format(DateTimeFormatter.ofPattern('e')) ;

emit(output);