A spring damper system for a pyrotechnic time delay, comprising: a piston having a piston head , a first rod extending in a first axial direction from the piston head, and a second rod extending in a second axial direction from the piston head, the second axial direction opposite the first axial direction, a first end of the second rod including a first engagement end; a firing pin comprising a head and a third rod extending axially from the head in the first axial direction, a second end of the third rod comprising a second engagement end , the second engagement end releasably coupled to the first engagement end in a channel , the channel configured to maintain engagement between the first engagement end and the second engagement end; a hydraulic chamber , the piston head disposed in the hydraulic chamber; a first spring configured to compress in response to a time delay sequence being initiated, the piston configured to translate axially in the first axial direction and pull the firing pin in the first axial direction in response to the first spring returning axially towards a neutral state, the head of the firing pin configured to compress a second spring in response to the firing pin being pulled in the first axial direction, the first engagement end and the second engagement end configured to release in response to exiting the channel, and the firing pin configured to translate in the second axial direction in response to stored energy of the second spring being released and a pressure plate disposed in a first chamber , the pressure plate configured to travel axially in the first chamber in the second axial direction, compress the first spring, and couple to the first rod in response to receiving an axial force. a piston having a piston head , a first rod extending in a first axial direction from the piston head, and a second rod extending in a second axial direction from the piston head, the second axial direction opposite the first axial direction, a first end of the second rod including a first engagement end; a firing pin comprising a head and a third rod extending axially from the head in the first axial direction, a second end of the third rod comprising a second engagement end , the second engagement end releasably coupled to the first engagement end in a channel , the channel configured to maintain engagement between the first engagement end and the second engagement end; a hydraulic chamber , the piston head disposed in the hydraulic chamber; a first spring configured to compress in response to a time delay sequence being initiated, the piston configured to translate axially in the first axial direction and pull the firing pin in the first axial direction in response to the first spring returning axially towards a neutral state, the head of the firing pin configured to compress a second spring in response to the firing pin being pulled in the first axial direction, the first engagement end and the second engagement end configured to release in response to exiting the channel, and the firing pin configured to translate in the second axial direction in response to stored energy of the second spring being released and a pressure plate disposed in a first chamber , the pressure plate configured to travel axially in the first chamber in the second axial direction, compress the first spring, and couple to the first rod in response to receiving an axial force. <EOS>