how long can a broody hen stay off her eggs before they die

[Hen mum]

My broody hen just got kicked off her eggs by two other hens, so I put the eggs in a separate cage and put her in there she was not happy I was so worried she wouldn't sit back on the eggs but she has a drink and food and went back on the eggs, she was off them for about 20 minutes I'm really hoping that's not to long and the eggs are no good somebody please help

 

[Finnie]

My broody hen just got kicked off her eggs by two other hens, so I put the eggs in a separate cage and put her in there she was not happy I was so worried she wouldn't sit back on the eggs but she has a drink and food and went back on the eggs, she was off them for about 20 minutes I'm really hoping that's not to long and the eggs are no good somebody please help

20 minutes should be fine.