New ESOP and elapsed time

If effective date of ESOP is 1/1/18 and service for vesting is measured from the effective date forward, how do you calculate the vesting for someone hired 2/9/16 under the elapsed time method?  From 2/9/17-2/8/18?

I meant to say from 2/9/18-2/9/19.  So the participant would have less than 1 YOS at 12/31/18. 

Lot's of viewers but no takers?  

Simple, the vesting clock starts ticking on the later of the plan's effective date or the employee's date of hire. 

1 hour ago, CuseFan said:

Simple, the vesting clock starts ticking on the later of the plan's effective date or the employee's date of hire. 

CuseFan is right. The OP is applying the concept of vesting computation periods.