I want to change my date (string) to a date format %Y-%m-%d for the time manager. I already try with the Field Calculator. But it is not working. What should i write in the expression. And should I create a new field?

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1 Answer 1


You should calculate a new field with field calculator. Notice the difference between capital and small characters! Here is an expression which should work. It first converts the content of your start_date field to a date type and then reformats it:

format_date(to_date("start_date",'dd.MM.yyyy'), 'yyyy-M-d')

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