DATEVALUE

06:08:18 Converts a date in the form of text to a serial number.
06:08:18 Warning: The PhpSpreadsheet DATEVALUE() function accepts a wider range of date formats than MS Excel DATEFORMAT() function.
06:08:18 Date String: 26 March 2012
06:08:18 Formula: =DATEVALUE(A1)
06:08:18 Excel DateStamp: 40994
06:08:18 Formatted DateStamp2012-Mar-26
06:08:18
06:08:18 Date String: 29 Feb 2012
06:08:18 Formula: =DATEVALUE(A2)
06:08:18 Excel DateStamp: 40968
06:08:18 Formatted DateStamp2012-Feb-29
06:08:18
06:08:18 Date String: April 1, 2012
06:08:18 Formula: =DATEVALUE(A3)
06:08:18 Excel DateStamp: 41000
06:08:18 Formatted DateStamp2012-Apr-01
06:08:18
06:08:18 Date String: 25/12/2012
06:08:18 Formula: =DATEVALUE(A4)
06:08:18 Excel DateStamp: 41268
06:08:18 Formatted DateStamp2012-Dec-25
06:08:18
06:08:18 Date String: 2012-Oct-31
06:08:18 Formula: =DATEVALUE(A5)
06:08:18 Excel DateStamp: 41213
06:08:18 Formatted DateStamp2012-Oct-31
06:08:18
06:08:18 Date String: 5th November
06:08:18 Formula: =DATEVALUE(A6)