x2mdate - Excel serial date number to MATLAB serial date number

Syntax

MATLABDate = x2mdate(ExcelDateNumber, Convention)

Arguments

ExcelDateNumber

A vector or scalar of Excel serial date numbers.

Convention

(Optional) Excel date system. A vector or scalar. When Convention = 0 (default), the Excel 1900 date system is in effect. When Convention = 1, the Excel 1904 date system is used.

In the Excel 1900 date system, the Excel serial date number 1 corresponds to January 1, 1900 A.D. In the Excel 1904 date system, date number 0 is January 1, 1904 A.D.

Due to a software limitation in Excel software, the year 1900 is considered a leap year. As a result, all DATEVALUEs reported by Excel software between Jan. 1, 1900 and Feb. 28, 1900 (inclusive) differ from the values reported by 1. For example:

In Excel software, Jan. 1, 1900 = 1
In MATLAB, Jan. 1, 1900 = 2

Vector arguments must have consistent dimensions.

Description

DateNumber = x2mdate(ExcelDateNumber, Convention) converts Excel serial date numbers to MATLAB serial date numbers. MATLAB date numbers start with 1 = January 1, 0000 A.D., hence there is a difference of 693960 relative to the 1900 date system, or 695422 relative to the 1904 date system. This function is useful with Spreadsheet Link EX software.

Examples

Given Excel date numbers in the 1904 system

ExDates = [35423  35788  36153];

convert them to MATLAB date numbers

MATLABDate = x2mdate(ExDates, 1)

MATLABDate =

      730845      731210      731575

and then to date strings.

datestr(MATLABDate)

ans =

25-Dec-2000
25-Dec-2001
25-Dec-2002

x2mdate - Excel serial date number to MATLAB serial date number

Syntax

Arguments

Description

Examples

See Also