26.02.2026
The Second EOP PCC Workshop No. 3 announcement
According to IERS message № 552, IERS is pleased announce the 3rd workshop, dedicated to the broadly defined topic of EOP forecasting and related aspects.
The 2nd EOP PCC Workshop No. 3 will be held online on 8-9 April 2026.
All interested researchers are invited to take part in the Workshop and submit abstracts. All topics related to the determination, analysis, and prediction of EOP, as well as discussions on reference solutions for EOP prediction validation, effective angular momentum analyses, and other relevant subjects are welcome.
Abstract submission deadline is 23 March 2026. The registration deadline is 3 April 2026. There are no fees for abstract submission or registration.
For more details, please, see IERS message № 552.
MMC SSTF, Mendeleevo, Moscow reg.
14.01.2026
No leap second will be introduced in UTC(SU) at the end of June 2026.
As it was recomended in Bulletin C №71 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 scale was at night from December 31, 2016 to January 1, 2017.
MMC SSTF, Mendeleevo, Moscow reg.
18.07.2025
No leap second will be introduced in UTC(SU) at the end of December 2025.
According to Bulletin C №70 of International Earth Rotation Service and Reference Systems (IERS), no leap second will be introduced at the end of December 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 scale was at night from December 31, 2016 to January 1, 2017.
MMC SSTF, Mendeleevo, Moscow reg.
04.03.2025
The EGU General Assembly 2025 will be held in VIENNA from April 27 to May 2 2025.
he General Assembly 2025 of the European Geosciences Union (EGU) is held at the Austria Center Vienna (ACV) in Vienna, Austria and online, from 27 April–2 May 2025.
This conference will be bring together geoscientists from all over the world to one meeting covering all disciplines of the Earth, planetary, and space sciences, such as:
- atmospheric Sciences;
- biogeosciences;
- climate: past, present & future;
- cryospheric sciences;
- Earth magnetism & rock physics;
- energy, resources and the environment;
- Earth & space science informatics;
- geodesy;
- geodynamics and Earth rotation;
- geosciences instrumentation & data systems;
- geomorphology;
- geochemistry, mineralogy, petrology & volcanology;
- hydrological sciences;
- natural hazards;
- nonlinear processes in geosciences;
- ocean sciences;
- planetary & Solar system sciences;
- seismology;
- stratigraphy, sedimentology & palaeontology;
- soil system siences;
- solar-terrestrial sciences;
- tectonics & structural geology.
MMC SSTF, Mendeleevo, Moscow reg.
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.