# What this PR does
Fix calculation for interval when building ical events for schedules
with end dates and masked days. Add a test which makes it easier to test
different cases that can occur.
## Which issue(s) this PR closes
Related to https://github.com/grafana/support-escalations/issues/12388
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## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] Added the relevant release notes label (see labels prefixed w/
`release:`). These labels dictate how your PR will
show up in the autogenerated release notes.
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Co-authored-by: Matias Bordese <mbordese@gmail.com>
c65a3c9cea