UTC_TIMESTAMP() returns the current UTC date and time. : UTC_TIMESTAMP « Date Time Functions « MySQL Tutorial

1. MySQL Tutorial
2. Date Time Functions
3. UTC_TIMESTAMP

The format is in 'YYYY-MM-DD HH:MM:SS' or YYYYMMDDHHMMSS format, depending on whether the function is used in a string or numeric context.

mysql>
mysql> SELECT UTC_TIMESTAMP(), UTC_TIMESTAMP() + 0;
+---------------------+-----------------------+
| UTC_TIMESTAMP()     | UTC_TIMESTAMP() + 0   |
+---------------------+-----------------------+
| 2007-07-23 02:46:23 | 20070723024623.000000 |
+---------------------+-----------------------+
1 row in set (0.00 sec)

mysql>