Date column format

I have a date return from SQL that is “2015-01-22T00:00:00”. When I try to do a format, it will return NaN/NaN/NaN in the output. I want to return yyyy-mm-dd.

To correctly work with dates, you need to have data in the grid as a date object: Number and Date Formatting of DataTable, Look and Feel Webix Docs
So you need to add scheme (to convert date string to date objects) with format:webix.i18n.dateFormatStr.

Thanks Nastja for your reply