You can view the time in Hours and Minutes format in the Weekly and Multi-day tabs.
Click the toggle button labeled "Decimal" in the Weekly or Multi-day tab
By default, hours are shown in decimal format in the Weekly and Multi-day tabs.
To switch to the Hours and Minutes format, enable the toggle button.
Note: This setting is temporary. It will reset to the default (decimal format) when the page is refreshed or upon logging out and back in.