Alternatively, You will need to create a custom query using either the get_posts() or wp_Query and have the posts filtered by the date picker values as the meta_keys. But because you do not know the row number, you will have to create a custom function to change the standard ‘=’ to ‘LIKE’ in the query.
Please see: https://support.advancedcustomfields.com/forums/topic/sort-posts-by-date-picker-in-repeater-field/
I hope that helps
