Judge Sherry Stephens set a tentative July 18 date for a new trial to determine if Arias will receive the death penalty, but defense attorneys last week asked the judge to delay the trial until 2014, ABC News reported.
In asking for the postponement, the attorneys cited scheduling conflicts and the need to find witnesses who would testify for their client.
Arias appeared in the Phoenix courtroom manacled and in prison stripes, but did not speak.
She was convicted May 8 of killing her ex-boyfriend, Travis Alexander, but jurors could not agree on her punishment.
Arias initially asked for the death penalty, but changed her mind when she spoke to jury members.
The retrial will determine if Arias will be executed or spend the rest of her life in prison. If the jury cannot decide, she will automatically get life in prison.