days360psa

Days between dates based on 360-day year (Public Securities Association (PSA) compliant)

Synopsis

NumDays = days360psa(StartDate, EndDate)

Arguments

StartDate

Row vector, column vector, or scalar value in serial date number or date string format.

EndDate

Row vector, column vector, or scalar value in serial date number or date string format.

Either input can contain multiple values, but if so, the other must contain the same number of values or a single value that applies to all.

Description

NumDays = days360psa(StartDate, EndDate) returns a vector or scalar value representing the number of days between StartDate and EndDate based on a 360-day year (that is, all months contain 30 days). If EndDate is earlier than StartDate, NumDays is negative.

Under this payment convention all months contain 30 days. In both leap and non-leap years, if the StartDate is the last day of February, this day is considered to be day 30 of the month.

Examples

Example 1. Use this convention to find the number of days in between the last day of February and the first day of March during a leap year.

StartDate = '29-Feb-2000';
EndDate = '1-Mar-2000';
NumDays = days360psa(StartDate, EndDate)
NumDays =

    1

Example 2. Use this convention to find the number of days in between the last day of February and the first day of March during a non-leap year.

StartDate = '28-Feb-2002';
EndDate = '1-Mar-2002';
NumDays = days360psa(StartDate, EndDate)
NumDays =

    1

As expected, the number of days in both cases is the same. The convention always assumes that the last day of February is the 30th day.

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