New York Penal Law Section 70.35 - Merger of certain definite and indeterminate or determinate sentences.

*   70.35  Merger  of certain definite and indeterminate or determinate
            sentences.
The  service  of  an  indeterminate   or   determinate   sentence   of
  imprisonment shall satisfy any definite sentence of imprisonment imposed
  on a person for an offense committed prior to the time the indeterminate
  or determinate sentence was imposed, except as provided in paragraph (b)
  of  subdivision  five  of section 70.25 of this article. A person who is
  serving a definite sentence at the time an indeterminate or  determinate
  sentence  is  imposed  shall  be  delivered  to the custody of the state
  department of corrections and community supervision to commence  service
  of  the  indeterminate  or  determinate  sentence immediately unless the
  person is serving a definite  sentence  pursuant  to  paragraph  (b)  of
  subdivision five of section 70.25 of this article. In any case where the
  indeterminate  or determinate sentence is revoked or vacated, the person
  shall receive credit against the definite sentence for each day spent in
  the custody  of  the  state  department  of  corrections  and  community
  supervision.
* NB Effective until September 1, 2019
  *  70.35 Merger of certain definite and indeterminate sentences.
The service of an indeterminate sentence of imprisonment shall satisfy
  any definite sentence of imprisonment imposed on a person for an offense
  committed  prior  to  the  time  the indeterminate sentence was imposed,
  except as provided in paragraph (b) of subdivision five of section 70.25
  of this article. A person who is serving a definite sentence at the time
  an indeterminate sentence is imposed shall be delivered to  the  custody
  of  the  state  department  of  corrections and community supervision to
  commence service of the indeterminate sentence  immediately  unless  the
  person  is  serving  a  definite  sentence  pursuant to paragraph (b) of
  subdivision five of section 70.25 of this article. In any case where the
  indeterminate sentence is revoked or vacated, the person  shall  receive
  credit  against  the definite sentence for each day spent in the custody
  of the state department of corrections and community supervision.
* NB Effective September 1, 2019

Last modified: February 3, 2019