Nintendo DSi & Nintendo DSi XL - Settings - Time

You can set the system's time. Time is displayed in military time, which is based upon a 24 hour clock. For instance, 3:00am is 03:00, and 3:00pm is 15:00. There is no way to change it to standard time and there is no automatic adjustment for Daylight Savings time.

How to change the time

1. On the Nintendo DSi Menu, use the stylus to select the Settings ("wrench") icon.
2. Select the right arrow to go to page 2, then select "Time."
3. Tap the up/down arrows to change the time, then select "OK" to confirm.