Metrics and events on the dashboards in Network Synthetic Monitor use a default time of two hours, calculated from the current time, but you can set a custom metrics default time frame to use. You can change the default to one of the following presets for the metrics time frame:
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1h — one hour
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2h — two hours
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1d — one day
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1w — one week
You can also set a custom time frame. Choose Custom, choose an Absolute or Relative time, and then set the time frame to a time of your own choosing. Relative time supports only 15 days back from today's date, following CloudWatch guidelines.
Additionally, you can choose the time displayed in the charts to be based on either the UTC time zone or a local time zone.
For more information, see Changing the time range or time zone format of a CloudWatch dashboard.
