prometheus / prometheus/alertmanager
Document first day of week for time intervals
Open
@TheMeier is already working on this.
Since Sep 18, 2026.
help wanted
kind/documentation
- Dominant language
- Go
- Stars
- 8.6k
- Forks
- 2.5k
- Avg merge
- 2d 6h
- Merged PRs (30d)
- 61
Description
Contrary to ISO 8601 and RFC 3339, Alertmanager regards Sunday as the first day of the week rather than Monday, so weekends cannot be written as saturday:sunday, and "every day" would have to be written as sunday:saturday rather than monday:sunday.
I think it would be even better if the "first" day of the week was an implementation detail, and ranges like friday:monday worked intuitively. I'm happy to implement this if there is agreement.
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.