I have a pair of Solar Viewing Eclipse Shades that say "Safe for Direct Solar Viewing" and would like to know if my eyes would be harmed if I looked at the sun everyday for about a minute wearing them.
Assuming that the glasses are safe for direct viewing of the sun as claimed, and assuming you don't damage them, then yes, they should be safe for viewing the sun daily in the manner you suggest. There would not be an accumulative harm effect.
Again, assuming the glasses are safe for direct viewing, you'll probably be at more risk for the rest of the day when you are walking around with naked eyes.
It depends on the quality of glasses and intensity, nature and degree of harmfulness of sunrays which you are watching to. Every eclipse has different intensity so as it can harm you.
When there was a solar eclipse around 3-4 years ago, it was a full solar eclipse. That time I watched it from my school with total naked eyes. My eyes were not harmed from that, but my school principle did.
But I still recommend you to not to watch it directly, use projectors which would allow you to get the view without directly watching the sun. Only use original products which are being certified.