The Metrics Charts show the following time periods by default:
1h, 6h, 12h, 1d, 2d, 7d, 14d, 30d
By modifying the duration parameter in the cloud console URL, you can adjust the time period displayed in the chart. Cloud Console only stores metrics for the past 30 days. If your duration exceeds 30 days, the chart will cover that time period but data will not exist prior to the 30 day window.
PT30M - past 30 minutes
PT8HM - past 8 hours
P5D - past 5 days
P3W - past 3 weeks