Good evening Alexis and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
I would love to help you with this topic.
Of course, you could do a very simple template customization on the widget view.
You might want to read our Themer’s guide to get a sense of how that works.
You could also try adding the following CSS rule to your style.css file or in your Custom CSS metabox:
.tribe-mini-calendar-event .list-date {
display: none !important;
}
Let me know if that helps.
Have a great day!
Geoff B.