Date Time MySQL

estamps:
mysql>
mysql>
mysql> SELECT NOW(), UNIX_TIMESTAMP(NOW());
+---------------------+-----------------------+
| NOW()               | UNIX_TIMESTAMP(NOW()) |
+---------------------+-----------------------+
| 2011-10-03 10:22:37 |            1317666157 |
+---------------------+-----------------------+
1 row in set (0.00 sec)
mysql>