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Checks whether the incoming value is a valid date or time. Use this to confirm a date field holds a real, well-formed date before you rely on it, or to separate records with a usable date from ones you need to clean up or reject. When you set a Format, the value not only has to be a real date but also has to be written exactly in that layout, so 2026-06-19 passes the format Y-m-d while 19/06/2026 does not. Leave the Format empty to accept any date or time the system can recognise.

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Fields

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Sample data

The condition was run with the Format below against a date field. With the Format left empty, both values above would match, because each can still be read as a date.