Ok, it’s not bad!
I was already using your template, i just called it wrongly “update modified field on edit”, thanks for your work.
I tried that “creation” template and it works, i just had to disable/enable “Update frontmatter modified date” and now it does like that:
---
Creation: 2023-09-13T15:16:47+02:00
Modified : 2023-09-13 15:16:57
---
the last thing now is to change the creation format to the same as modifed. Can someone help me?
thank you
(On a side note, check the solution i found to my older problem.)