Hi Peter Bromberg,
Thank you for reaching out to us on Microsoft Q&A forum.
You can create a new table by using DAX “ Table = CALENDAR(DATE(2023,1,1),DATE(2024,12,31))” and then add the date column to the slicer visual by default it shows Start date and End date. If not go to the Slicer formatting and select between under slicer settings.
Kindly refer the below screenshots:
If you are still facing any issue, please let us know in the comments. We are glad to help you.
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Thank you