How do you change the time of day hens lay their eggs? It's been around 100 degrees lately, and 2 of my 3 hens have started laying after 12pm. Since those eggs are in the heat all day by the time I come home from work, I 've had to throw them out for 3 weeks now. Note: Usually, they would have laid their eggs by 9am. Before I head off to work , I collected the eggs, and I let them run around the yard for 1.5 hrs.