I think I get it now. I believe you want to create a date picker filter so the users can select on what range the date is created. Something like: https://i.imgur.com/xyBQbbY.png
Unfortunately it's not yet possible with the Events calendar plugin. It's possible to make date filters with custom fields, but currently it only works with the default Advanced Custom Fields date format, which is not compatible with Events calendar.
The good news is, that I'm adding a new date filter for the upcoming version with a Video Tutorial on event calendar, which will make this possible. I'm sorry, but there is no temporary solution I can offer until then, it's a bit more complicated, I hope you understand.
The new version should be released within a week.Best,
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