got to tell you i always thought DSL was dumb but now that my daughter is in middle school and catches the bus at 7:15AM EST i have a change of heart..
The sun would have been up an hour longer this morning prior to your daughter getting on the bus if we weren't on daylight savings time right now. So, if it's just now only daylight at, say, 7 AM, it will be daylight at 6 AM come Sunday (minus a few minutes for the shorter day overall moving closer to the Winter Solstice).