I'm actually taking a class in meridian theory, and the topic came up about the movement of qi through the channels. If we need to do acupuncture in a certain channel, if it is practical, it is best to wait until the qi is greatest in that channel. I actually asked the instructor if we need to correct for daylight savings, and apparently when these theories were developed, there was no daylight savings. Energy apparently moves in the body according to the movement of the earth in relation to the heavenly bodies, especially the sun and the moon.
The bottom line is that If we are using daylight savings time, we need to correct for it. The way I interpret this is that instead of having the optimal meditation times being 11pm - 1am, and 11am - 1pm, they move to 12mid - 2am and 12noon - 2pm.
As for your question, if you usually meditate from 12:30 am to 1:00 am, then it seems like you shouldn't have to change anything because that would still be within the first 2 hour period of the day.
