calendar date advanced start and end date setting exact syntax

Hello,

I want to set a calendar date to be between today and a date from the database. I read the manual and other forum postings, but no where can I see the specific example of syntax that used should be used. {date: Y-m-d} in the start calendar (and the earliest time) does not seem to work. {date:Y-m-d $(var:read_article.Article.Article_target_dt)} for the end calendar (and the latest date) does not seem to work. Can you please help with the correct syntax? Attaching the image for your reference as well.

Hi 4Summit,

Please clear all fields except the "Earliest date/time", does it work ?

Best regards

Hello Max,
i cleared all field except the "earliest date/time:, but still did not work. I tried the latest date/time and no luck either. Any other suggestions?
Thanks!