Yes. The same times are applicable. But the reason I've said DSi is better mainly bc of the reset button, which requires less actions than the usual: b, b, a + turn ds on. Also, you don't need to remove or insert cart during the entire process.
For the DSi, all you need to do is:
1) Enter the correct time.
2) As soon as the confirm window disappear, press reset
3) Enter game
Thats it!