Add an event in Month View
In Month View, touch and hold the screen near the day you want to add an event.
Then pop-up will appear, You can dragg it for changing the event time. When you touch up, the event time is determined and new view for adding event will appear.
Add an event in Day View
In Day View, When you touch and hold free area, The trembled event will appear. You can change the event time by dragging it. When you tap the free area, the event adding will be confirmed.