## ACT 364

Subtype of NameActual/364 day counter

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

**be the actual number of days of the period**

*N***, formally defined as the difference:**

*[T₁,T₂)*

*T₂ - T₁*Then

*L = N/364*