DATEVALUE

16:18:25 Converts a date in the form of text to a serial number.
16:18:25 Warning: The PhpSpreadsheet DATEVALUE() function accepts a wider range of date formats than MS Excel DATEFORMAT() function.
16:18:25 Date String: 26 March 2012
16:18:25 Formula: =DATEVALUE(A1)
16:18:25 Excel DateStamp: 40994
16:18:25 Formatted DateStamp2012-Mar-26
16:18:25
16:18:25 Date String: 29 Feb 2012
16:18:25 Formula: =DATEVALUE(A2)
16:18:25 Excel DateStamp: 40968
16:18:25 Formatted DateStamp2012-Feb-29
16:18:25
16:18:25 Date String: April 1, 2012
16:18:25 Formula: =DATEVALUE(A3)
16:18:25 Excel DateStamp: 41000
16:18:25 Formatted DateStamp2012-Apr-01
16:18:25
16:18:25 Date String: 25/12/2012
16:18:25 Formula: =DATEVALUE(A4)
16:18:25 Excel DateStamp: 41268
16:18:25 Formatted DateStamp2012-Dec-25
16:18:25
16:18:25 Date String: 2012-Oct-31
16:18:25 Formula: =DATEVALUE(A5)
16:18:25 Excel DateStamp: 41213
16:18:25 Formatted DateStamp2012-Oct-31
16:18:25
16:18:25 Date String: 5th November
16:18:25 Formula: =DATEVALUE(A6)