A positive leap second will be introduced at the end of December 2016.
A positive leap second will be introduced at the end of December 2016.

pleroy/Principia,mockingbirdnest/Principia,pleroy/Principia,pleroy/Principia,mockingbirdnest/Principia,mockingbirdnest/Principia,eggrobin/Principia,mockingbirdnest/Principia,eggrobin/Principia,pleroy/Principia,eggrobin/Principia