Mavericks calendar events longer than 3 hours

I am using Mavericks.

I use Calendar in monthly mode and with times in 24 hour mode.

When I enter or edit an event in Calendar.app it seems to be limited to 3 hours. First you have to deselect the whole day then the list of end times only goes to 3 hours, which I can live with. But if I close the drop down and try to edit the end time end time directly as if I put in a later time Calendar changes it to 3 hours. However only sometimes (about 50% success)

How do I enter an entry longer than 3 hours?

I use the + quick event button which is the same as Command-N to enter:

meeting from 10am to 5pm on thursday

It makes blocking specific times quite easy using Calendar app. I also often use the week or day view and create a default event and drag the bottom of the event to the end time.

Lastly, I select the hour when I mouse to raise the quick interval drop down and rather than use the mouse to change the end time, just type the hour and tab to the minutes field if necessary.

One way that might work is the following:

1. Click on the Event "To" Time.

2. When the drop-down menu appears, press Esc.

3. Double-click on the hours/minutes of the "To" time. It should be highlighted now (orange for me).

4. Then press Arrow Up.

Slightly inconvenient but hopefully it solves the issue.

I think I have found the issue.

The method which is what I tried is as per Felix Sim's and mwd27's answers.

The issue seems to be that there is a timer on the time field to type say 18 you have to hit the 1 and then 8 close enough together and my typing is just slow enough to sometimes hit the timeout and Calendar puts the old value back.

GutierrezDev's answer works for me reliably as it only requires one key press.