StartDate
The column titled #StartDate in the table associated with the key Setis optional and contains elements of type Date.
Each element represents the effective (start) date of the corresponding swap, which is the date when the swap's legs start accruing.
If omitted, the respective swap starts on T = Tₛ + Δ
where
Tₛ is the settlement date Tₛ = T₀ + s where T₀ is the trade date and s is the settlement period defined by the entry Settle Days and the calendar of the overnight index.
Δ is an optional time interval that may be specified in a column titled #StartDelay