Wizard "upload CSV" with date field, default format

What is the format, by default, for a date in the CSV file that is used in the "Upload CSV" option?

Many thanks

Elasticsearch does the actual date parsing, so it's based on the mappings. The Upload CSV wizard creates a date field with the default format, which is strict_date_optional_time||epoch_millis. You can more about the default format here: https://www.elastic.co/guide/en/elasticsearch/reference/master/date.html

With "2015-06-30", its ok.

Many thanks.