When it comes to setting a specific date for an event, there are a multitude of synonyms that you can use instead of saying "fixes date of." Some possible alternatives include schedulers, determines the date, sets a timeline, specifies a day, assigns a day, establishes a date, designates a time, appoints a date, and confirms a date. These synonyms are all great options to use, as they help to add variety and interest to your writing. They also allow you to convey the same meaning in a new and creative way, something that can be essential when writing compelling and engaging content.