Windows (since recently) is probably the only operating system with an actual leap seconds support: https://techcommunity.microsoft.com/t5/Networking-Blog/Top-1

Windows (since recently) is probably the only operating system with an actual leap seconds support: https://techcommunity.microsoft.com/t5/Networking-Blog/Top-10-Networking-Features-in-Windows-Server-2019-10-Accurate/ba-p/339739 https://techcommunity.microsoft.com/t5/Networking-Blog/Top-1...