Time

Ok. When your game loads, and the menu screen comes up, there is a little box at the bottom. Click on the box, the click the blue icon, then click the clock icon.

Hope this helps you.

To change your time on your game you have to go to your DS menu then click the setting icon then you change the time from there. The game time is your DS time remember that for me. I hoped this helped.

~Twilight_Sasuke~

Well when you power on your DS, there is a little box on the bottom of your main screen. Touch it and then touch the blue icon. Touch the clock icon and voila, you can set the time. Please note that you cannot do this if your DS is set to manual mode. You can also set date, signature and more in the box. Hope this helps!
P.S. When you change the time on your DS, the time on your Pokemon Diamond game is changed too. This may affect the time of berry growth.

To change the time on you game go to the DS main menu when you first turn it on. Click the setting icon thingy and then click on the Clock icon thingy. Change it from there.

Well, you actually change the time from the Nintendon DS menu, in the bottom left or right corner there is a small icon of an alarm clock, click on this clock and you can change your time and date settings from there.

Hope this helps.

~Geezerguy~

You actually go to the DS main menu. In the settings, under the clock looking icon, you can change the time. Changing the time on your DS will change the time on DS game that works along with the clock.