Dear Jasmine,
You can use Data Warehouse to export dimensions and metrics with hour granularity by minimum.
If you need exact Time Stamp, you need to use Data Feed but note that it is pre-processed data and you need to calculate the metrics by yourself . Link : Calculating Metrics
If you are thinking about implementation, try to capture the time in Traffic & conversion variable so that you can see it from Workspace.
Hope this helps.
Thank You!
Arun