Accrual Days

Function Accrual Days within Bond with keys Bond Accrual Days keys returns the accrual days of the referenced bond(s) at a given reference date Tˢ
This equals the number of calendar days of the accrual period containing Tˢ

If the settlement date Tˢ is not explicitly given, it will be set to the bond's settlement date as implied by a trade transaction assumed to occur on the trade date T₀ (typically today).