With Templater, you can generate prev/next links based on the day you’re looking at. For example, if you click a day sometime next week in the calendar, then the prev/next weeks will be accurate for that day.
Prev: [[ <% tp.date.now("YYYY-MM-DD - ddd MMM D", -1, tp.file.title, "YYYY-MM-DD - ddd MMM D") %>]] | Next: [[<% tp.date.now("YYYY-MM-DD - ddd MMM D", 1, tp.file.title, "YYYY-MM-DD - ddd MMM D") %>]]