"Grief In The Strange Loop" by Rhonda Eikamp appeared in Daily Science Fiction on April 23, 2013. "A time traveler is 'lost' when his ten-year-old son accidentally sends him into an unknown time in the past."
Time travel stories have all kinds of possibilities for interesting twists and turns, and Ms. Eikamp explores many of them in her clever, poignant, thought-provoking tale. I will not get any more detailed than that lest I spoil. 7 out of 7 rocket-dragons.