Events

09.01.2025

 

No leap second will be introduced in UTC(SU) at the end of June 2025.

 

According to Bulletin C №69 of International Earth Rotation Service and reference systems (IERS), no leap second will be introduced at the end of June 2025 in national realization of the scales of Coordinated Universal Time UTC(SU) and the International Atomic Time TAI(SU).

The last time when leap second was introduced in UTC(SU) and TAI(SU) time scales was at night from December 31, 2016 to January 1, 2017.

MMC SSTF, Mendeleevo, Moscow reg.