One exposed filter for many views/views blocks I want to have one exposed filter and 2 blocks displaying different content types. They both have 'date' field and I want to show same-day content with one date exposed filter. 

Anyone knows how to achieve this? Do I have to create one or two different views? How to share exposed filter (ie. field_content_type_1_date) with another content type (which has field_content_type_2_date field)?
If the two content types are using the same date_field and the blocks are shown on the same url, you can use the exposed filter of one view display to filter both views blocks. You just have to configure the exposed filter on the same field in both views/displays