## 30 365

Subtype of Name30/365 day count convention

Let

**be the period between two dates**

*[T₁,T₂)***and**

*T₁***, of which the length**

*T₂***in annual units must be calculated**

*L*Calculation rule:

Let the starting date represented in day-month-year format as d1-m1-y1

Similarly, the ending date as d2-m2-y3

Then define the effective number of days

**with the formula:**

*N*N = 360*(y2-y1) + 30*(m2-m1) + (d2-d1)

Then

*L = N/365*