From what point is the Contractor paid a bonus for early Completion?

NEC3 and NEC4 Contracts Secondary X, W and Y options
1

From what point is the Contractor paid a bonus for early Completion?

2

The Contractor is paid a bonus each day from Completion or the date on which the Employer takes over the works (whichever date is earlier) until the Completion Date (see Clause X6.1).