Former As I Lay Dying frontman Tim Lambesis has lost his bid to shave time off his prison sentence after he was found guilty of plotting to kill his wife.

The rocker's lawyer argued his client's time behind bars should be reduced by the amount of time he served while under "house arrest" as he awaited sentencing, but in a Del Mar, California court on Friday (18Jul14), Judge Carlos Armour denied the request, explaining that credit only applies to inmates held in lieu of bail.

He stated, "He was privately monitored, not by the Sheriff who controls those in custody in this County. Therefore, those custody credits are denied."

Lambesis was sentenced to six years behind bars in May (14).

He was arrested in May, 2013 after handing an undercover cop, pretending to be a hitman, cash and instructions of how to gain entry to his wife's home.

Prior to his sentencing, the singer expressed his remorse and told authorities that his steroid use was "affecting many decisions in my life". He insisted, "I am not a risk to her (wife Meggan) in the slightest way."