IERS Announces No Leap Second Will Be Added in June 2026
By
speckx
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Summary
The International Earth Rotation and Reference Systems Service (IERS) has announced that no leap second will be introduced at the end of June 2026. The bulletin confirms that the difference between Coordinated Universal Time (UTC) and International Atomic Time (TAI) will remain at -37 seconds, unchanged since January 1, 2017. This is a routine announcement from the IERS Earth Orientation Center, which issues such bulletins every six months to either announce time steps or confirm no changes to UTC.
Key quotes
· 4 pulledNO leap second will be introduced at the end of June 2026.
The difference between Coordinated Universal Time UTC and the International Atomic Time TAI is: from 2017 January 1, 0h UTC, until further notice: UTC-TAI = -37 s
Leap seconds can be introduced in UTC at the end of the months of December or June, depending on the evolution of UT1-TAI.
Bulletin C is mailed every six months, either to announce a time step in UTC, or to confirm that there will be no time step at the next possible date.
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