How can i change this Timeline to have a longer Day/Night Cycle?

Hi all…
I followed a tutorial for create a night/day scene
This is the timeline…but i want that the dai and the night stay for more time…how i can?

The first thing you do is change the timeline length to the number of seconds you want the day to last.
Then you click on the last point in the track and change its time to the total length time.

Here’s a example:

I changed the length to 2 minutes(120 seconds) and the last point also to 120 seconds.
You also want to change the time on the other 3 points in the Time track.