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Co-authored-by: Thomas Frauenstein <[email protected]>

chapters/data-formats.adoc

@@ -129,7 +129,7 @@ more effort to parse, avoid this ambiguity.
 
 When choosing between `date` and `datetime` formats you should take into account the following:
 
-* `date` should be used for properties where no exact point in time is not required and day time-range is sufficient,
+* `date` should be used for properties where no exact point in time is required and day time-range is sufficient,
 for instance, document dates, birthdays, ETAs (estimated time of arrival).
 Without further context, `date` without time implies the time period from midnight to midnight in the local time zone.
 However, the timezone information can be also provided