String to timestamp in MySQL
UNIX_TIMESTAMP()
does the trick:
SELECT UNIX_TIMESTAMP('2011-12-21 14:20:00');
However, the UNIX_TIMESTAMP()
function only takes a standard MySQL formatted date. If you want to use the AM/PM notation, you will need to use STR_TO_DATE
first like this:
SELECT UNIX_TIMESTAMP(
STR_TO_DATE('2011-12-21 02:20pm', '%Y-%m-%d %h:%i%p')
);
Though @a'r has already given the correct answer, still something I would like to add here is that the two params STR_TO_DATE() function, 'date string' format and 'date format' string, should have matching placement of '-' and ':'.
For example following 4 queries return exact same result 2014-05-28 11:30:10
SELECT STR_TO_DATE('2014-05-28 11:30:10','%Y-%m-%d %H:%i:%s');
SELECT STR_TO_DATE('20140528 11:30:10','%Y%m%d %H:%i:%s');
SELECT STR_TO_DATE('2014-05-28 113010','%Y-%m-%d %H%i%s') ;
SELECT STR_TO_DATE('20140528 113010','%Y%m%d %H%i%s');
Note: the 2 params to STR_TO_DATE() function in each query has matching placement for '-' and ':'