Abstract
The "International Time Service" (Servicio Internacional de la Hora, SIH) at the Instituto Geográfico National Argentino (IGNA, formerly Instituto Geográfico Militar Argentino, IGMA), has contributed to the maintenance of the international time scale since its creation in 1931. In 2010 the IGNA started a process of upgrading its time laboratory with the objective of improving its contribution to the computation of the international reference time scales at the International Bureau of Weights and Measures (BIPM).
