Constant acceleration: How do I solve time.

HOW DO I CALCULATE TIME?

I need help with this, someone said I have to find time and I have clue on how.ave a problem and I can't solve it. Do I have enough info?

Two knights on horseback start from rest 88.0m apart and ride directly toward each other to do battle. Horse A accelleration has a magnitude of 0.300 m/s^2, while Horse B has a magnitude of 0.200 m/s^2.

Relative to Horse A's starting proint, where do the horses collide?

I am not sure what to do here.

Please let me know ASAP, thanks for looking and helping if you do.