estimated time of arrival (ETA)

hora estimada de llegada; hora estimada de arribo

Although tiempo estimado de arribo and tiempo estimado de llegada are sometimes used, this terminology is incorrect and misleading. As defined in the Tsunami Warning Center Reference Guide, ETA is a specific time (hora) given in UTC, not a period of time (tiempo). No acronym is used in Spanish, sometimes ETA. See also arrival time.

NOT tiempo!