XHTF-FM is a radio station on 100.3 FM in Monclova, Coahuila, Mexico, known as Estéreo Tiempo.
XHTF received its concession on February 16, 1982. It was owned by Humberto Medina Ainslie with an ERP of 10 kW. It was sold to MartÃÂnez Ramón in 1986.