coupon date not importing

[DevonH]

On my discounts tab, for setting a coupon, the only option I have for date is beginning and end date. I set the end date for Jan 1, 2022, but when I open the store site, it always has a date just a few days beyond the date I'm looking at it. For ex., on the store today, Nov 19, it says it ends on the 21st - of Nov. 

Also, there is a minimum purchase amount required for the discount which applies to all products, but the coupon on the product page doesn't say that....  

I've tried re-entering the expiry date over and over and it never uploads properly to the site.