Answer:
Endocrine system, minutes to days
nervous system, less than one second
Step-by-step explanation:
Nervous system takes information through senses, processes the information and triggers reactions.
Nervous system has less reaction time because it uses electrical signalling (neural impulses) while Endocrine system uses chemical signalling (hormones).
The endocrine system responds to stimulus by secreting hormones in the blood (circulatory system) that travels to the target organ, and hence take more reaction time.