2 ms·It's never happened before. All leap seconds before now have been positive.by Vecr 3y agoIt's never happened before. All leap seconds before now have been positive.aidenn0 3y agoBut we've known about the potential for negative leap seconds for at least decades now (UTC described them in the 70s).CydeWeys 3y agoChatGPT doesn't RTFM.