Creating a new event
To create a new event either tap on an empty space of the current day or hit the add-new-event-button at the top right. If you like the first method please make sure to tap the slightly transparent and temporary new event again to open the input mask.
Changing start and end time or duration of an event
To change these parameters of an event just long tap it. Now two time select handles will appear. One at the top and one at the bottom of the event. While moving the one on the top edits the start time, moving the one at the bottom will change the end time. You can also move the entire event and retain the duration. Therefore just tap and hold to drag and drop it to another position on this day.
Finish the whole process by tapping the checkmark button at the top left.
Hint: If you don't like the change you can also tap the back-button at the top right of the drag and drop mode in order to undo all the changes.
Deleting an event
Deleting an event is easy, too. Just long tap the event you want to remove and the drag and drop mode will start. Now hit the trash icon at the top right to erase it.
If you want to restore it for any reason just hit the back-button at the top right before leaving the drag and drop mode.
Working with tasks
In the day view you will notice the tasks in the same way as in the week view. Furthermore there is a task-field in the special side-bar on the right. It allows you to quick add tasks, to change the status and to open the details of a task.