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# days360isda

Days between dates based on 360-day year (International Swap Dealer Association (ISDA) compliant)

## Synopsis

NumDays = days360isda(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 = days360isda(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 convention all months contain 30 days.

## Examples

Example 1. Use this convention to find the number of days in the month of January.

StartDate = '1-Jan-2002';
EndDate = '1-Feb-2002';
NumDays = days360isda(StartDate, EndDate)
NumDays =

30

Example 2. Use this convention to find the number of days in February during a leap year.

StartDate = '1-Feb-2000';
EndDate = '1-Mar-2000';
NumDays = days360isda(StartDate, EndDate)
NumDays =

30

Example 3. Use this convention to find the number of days in February of a non leap year.

StartDate = '1-Feb-2002';
EndDate = '1-Mar-2002';
NumDays = days360isda(StartDate, EndDate)
NumDays =

30