Amazon CloudWatch Alarms now supports wall clock evaluation windows
News
This article announces wall clock evaluation windows for Amazon CloudWatch metric alarms, enabling customers to align alarm evaluations to fixed calendar boundaries.
- Aligns alarm evaluations to fixed calendar boundaries like hourly, daily, or weekly intervals
- Eliminates false alarms when events cross rolling window boundaries
- Evaluates each calendar period independently for scheduled workloads
- Supports timezone specification with automatic daylight saving time handling
- Available in all AWS Regions except Middle East (UAE) and Middle East (Bahrain)
Wall clock evaluation windows provide more accurate monitoring for business-aligned and scheduled workloads by preventing false alarms from boundary-crossing events.
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