Sec.   85.05    Modification   and  revocation  of  sentences  of
                   intermittent imprisonment.
    1.   Authorization.   A sentence of intermittent imprisonment
may be modified by the court in its discretion  upon  application
of  the  defendant; and the court on its own motion may modify or
revoke any such sentence if:
    (a)   the  court is satisfied during the term of the sentence
that the defendant has  committed  another  offense  during  such
term;
    (b)  the defendant has failed to report to the institution to
which he has been committed, or to the institution designated  by
the  head  of the agency to which he has been committed, on a day
or dates specified in the commitment and is unable  or  unwilling
to  furnish  a  reasonable  and  acceptable  explanation for such
failure; or
    (c)   the  defendant has violated a rule or regulation of the
institution or agency to which he has been committed and the head
of  such  institution  or  agency or someone delegated by him has
reported such violation in writing to the court.
    2.    Interruption  of  sentence.   In  any  case  where  the
defendant fails to report to the institution or to an institution
of  the  agency  to  which he has been committed, the term of the
sentence  shall  be  interrupted  and  such  interruption   shall
continue  until  the defendant either reports to such institution
or appears before the court that imposed the sentence,  whichever
occurs first.  If the defendant reports to the institution before
he appears before the court,  he  shall  be  brought  before  the
court.
    3.   Action by court.  The court shall not modify or revoke a
sentence of intermittent imprisonment unless  the  defendant  has
been  afforded an opportunity to be heard.  Any modification of a
sentence of intermittent imprisonment:
    (a)   may  provide  (i)  for different or additional or fewer
days or parts of days on which the defendant is to  be  confined,
or  (ii) where the defendant has failed to report as specified in
the sentence, an extension of the term of the  sentence  for  the
period during which it was interrupted, or (iii) for both; and
    (b)   shall  be  by  written  order of the court and shall be
delivered and filed in the same manner as the original  sentence,
as specified in subdivision two of section 85.10 of this article.
    4.  Jail time.  Where a sentence of intermittent imprisonment
is revoked and a sentence of imprisonment is imposed in its place
for  the  same  offense,  time  spent  in  confinement  under the
sentence of intermittent imprisonment shall be calculated as jail
time under subdivision three of section 70.30 of this chapter and
shall be added to any jail time  accrued  against  such  sentence
prior to imposition thereof.

(For verification consult Official Text at Senate Gopher site.)