Hen off 18 day eggs for two hours will they survive?

[Anonymous]

I am a first time chicken keeper. I have an Orpington hen who has been sitting on her 3 fertile eggs for 18 days
unfortunately we think a mink or maybe a jackdoor has scared her off her nest and has stolen an egg. We found her running around the garden. We have put her back on the two remaining eggs and brought her indoors. My question is what is the maximum amount of time a hen can be off her eggs before the embreoes/chicks die. We think she was off them for two hours.

 

[victorias poultry]

Eggs will be fine for a few hours, I had a broody that decided to go off her eggs at day 16 for 12 hours, I popped them into an incy and they were fine and hatched safe and sound

 

[Anonymous]

Thank you for your reply, you have given us hope now, as we lost the cockerel two days ago and they are his progeny.