Back الهيئة الدولية لدوران الأرض والنظم المرجعية Arabic Servei Internacional de Rotació de la Terra i Sistemes de Referència (IERS) Catalan Internationaler Dienst für Erdrotation und Referenzsysteme German Servicio Internacional de Rotación de la Tierra y Sistemas de Referencia Spanish سرویس بینالمللی چرخش زمین و سامانههای مرجع Persian International Earth Rotation and Reference Systems Service Finnish Service international de la rotation terrestre et des systèmes de référence French Badan Sistem Referensi dan Rotasi Bumi Internasional ID Ọrụ Ntụgharị Ụwa na Ntụziaka IG International Earth Rotation and Reference Systems Service Italian
 The IERS logo | |
| Abbreviation | IERS |
|---|---|
| Website | www |
The International Earth Rotation and Reference Systems Service (IERS), formerly the International Earth Rotation Service, is the body responsible for maintaining global time and reference frame standards, notably through its Earth Orientation Parameter (EOP) and International Celestial Reference System (ICRS) groups.