It depends. Since NYC allows it under limited circumstances it will be okay if you follow that guideline. In Section 4-08 of the NYC Traffic rules it states:
(2) Hydrants. Within fifteen feet of a fire hydrant, unless otherwise indicated by signs, or parking
meters, except that during the period from sunrise to sunset if standing is not otherwise
prohibited, the operator of a passenger car may stand the vehicle alongside a fire hydrant
provided that the operator remains in the operator’s seat ready for immediate operation of the
vehicle at all times and starts the motor of the car on hearing the approach of fire apparatus, and
provided further, that the operator shall immediately remove the car from alongside the fire
hydrant when instructed to do so by any member of the police, fire, or other municipal department
acting in his/her official capacity.
So at night, no.