You can select date range at the project, workspace, and report levels. A project's date range is the default date. However, a workspace date range overrides the project's date range. Similarly, a report's date range overrides the date settings of a workspace and project. However, you cannot select a date range outside your data availability range.
If needed, you can create custom date ranges in the workspace by using Components > New Date Range in the workspace or by directly using date range builder. more details Create custom date ranges
Note: Date range builder can be accessed outside of workspace thought Tools > Date Ranges as well.
Once done drag date range below selected metrics to see by date range.
Ex. Select last month at the project level > use new visit dimension with visit metrics > apply today, yesterday, last 7 days date rages below visit metrics > see different values based on time selected.
Thanks,
Asheesh