How to Use Smaller Time Increments in Outlook Calendar (Outlook 2016)
You can change the time increments shown in your Outlook calendar to allow for smaller more detailed calendar entries.
Calendar/Task Management
You can turn on the "To-Do Bar" in Outlook 2013/2016. It can help you quickly see what you have scheduled for the day. You have the option of showing a monthly calendar, the "People" pane, and "Tasks".