At the end of maintenance, the last day shown is November 8th of 1980. When that date first appears on the screen, it is daylight. Then we see Eric waiting for Becky to get out of her house (in order to live with her to Maine), it is then night time. When she doesn't go out he decides to hit the road back to his military base and finish packing up. When he enters the base, it is daylight again. However, when he finally takes off to Maine, while he is on the road, it is night time again and the date shown is still November 8th of 1980. It should be November 9th (or more) of 1980 since at least one day and a half separates the scene when that date first appeared and the last scene it appears in.