DATEVALUE

07:10:57 Converts a date in the form of text to a serial number.
07:10:57 Warning: The PhpSpreadsheet DATEVALUE() function accepts a wider range of date formats than MS Excel DATEFORMAT() function.
07:10:57 Date String: 26 March 2012
07:10:57 Formula: =DATEVALUE(A1)
07:10:57 Excel DateStamp: 40994
07:10:57 Formatted DateStamp2012-Mar-26
07:10:57
07:10:57 Date String: 29 Feb 2012
07:10:57 Formula: =DATEVALUE(A2)
07:10:57 Excel DateStamp: 40968
07:10:57 Formatted DateStamp2012-Feb-29
07:10:57
07:10:57 Date String: April 1, 2012
07:10:57 Formula: =DATEVALUE(A3)
07:10:57 Excel DateStamp: 41000
07:10:57 Formatted DateStamp2012-Apr-01
07:10:57
07:10:57 Date String: 25/12/2012
07:10:57 Formula: =DATEVALUE(A4)
07:10:57 Excel DateStamp: 41268
07:10:57 Formatted DateStamp2012-Dec-25
07:10:57
07:10:57 Date String: 2012-Oct-31
07:10:57 Formula: =DATEVALUE(A5)
07:10:57 Excel DateStamp: 41213
07:10:57 Formatted DateStamp2012-Oct-31
07:10:57
07:10:57 Date String: 5th November
07:10:57 Formula: =DATEVALUE(A6)