How to format title of Daily Notes with the date of the week's Monday?

Help
1

First, search the help docs and this forum. Maybe your question has been answered! The debugging steps can help, too. Still stuck? Delete this line and proceed.

What I’m trying to do

I have Obsidian set to open onto Daily Note. I want to format the title of the Daily Note with the date of that week's Monday, so that only one Daily Note is created per week. 

2026
- 05
-- 2026-05-11
-- 2026-05-18
-- 2026-05-25

Things I have tried

I can format the title of the Daily Note with the week of the year 

GGGG/MM/[wk]WW

So that the result is 2026

2026
- 05
-- wk20
-- wk21
-- wk22

but I don't know how to replace the week of the year with the date of that week's Monday. 

I've seen discussions of Periodic Notes, but the titling convention there seems the same. 

I've seen discussions of templates using momentjs, but maybe I don't understand the solutions well enough to understand how to implement them. 

How can I format the title of a Daily Note with the date of that week's Monday, so that only one Daily Note is created per week?
2

Monday is a DAY of week. I don’t know what letter does exactly what you want, but if you’ll read manual more carefully, you’ll have success!

3

I think you misread my post.

4

The solution is Periodic Notes. I was thrown off that setting the title format for Period Notes’ Weekly Note GGGG-MM-DD was previewing the current date. But upon actually creating a Weekly Note, the title date is the first day of the week.