DATEVALUE

19:01:59 Converts a date in the form of text to a serial number.
19:01:59 Warning: The PhpSpreadsheet DATEVALUE() function accepts a wider range of date formats than MS Excel DATEFORMAT() function.
19:01:59 Date String: 26 March 2012
19:01:59 Formula: =DATEVALUE(A1)
19:01:59 Excel DateStamp: 40994
19:01:59 Formatted DateStamp2012-Mar-26
19:01:59
19:01:59 Date String: 29 Feb 2012
19:01:59 Formula: =DATEVALUE(A2)
19:01:59 Excel DateStamp: 40968
19:01:59 Formatted DateStamp2012-Feb-29
19:01:59
19:01:59 Date String: April 1, 2012
19:01:59 Formula: =DATEVALUE(A3)
19:01:59 Excel DateStamp: 41000
19:01:59 Formatted DateStamp2012-Apr-01
19:01:59
19:01:59 Date String: 25/12/2012
19:01:59 Formula: =DATEVALUE(A4)
19:01:59 Excel DateStamp: 41268
19:01:59 Formatted DateStamp2012-Dec-25
19:01:59
19:01:59 Date String: 2012-Oct-31
19:01:59 Formula: =DATEVALUE(A5)
19:01:59 Excel DateStamp: 41213
19:01:59 Formatted DateStamp2012-Oct-31
19:01:59
19:01:59 Date String: 5th November
19:01:59 Formula: =DATEVALUE(A6)