Filters used for date in datatables are not inituitive for users since they compare date as stored in the database. For example, in fr, date use to be written DD/MM/YYYY, so users tend to write DD/MM in filters and find nothing. They must have written MM-DD which is barely impossible for them to guess. Steps to reproduce : 1 - Go on a biblio record 2 - Activate filters 3 - On Date accessionned, copy/paste any field -> it will return nothing. 4 - Write the date in the format YYYY-MM-DD -> it will work Note: I did put this in REST API but it is related to anything that calls it, if you have a better idea on where we should put this, feel free :)