Syntax
TIME_TO_USEC(date)
Purpose
TIME_TO_USEC() converts the value of date into microseconds from 1970-01-01 00:00:00.000000, taking into account the time zone.
In the syntax above, date can be a date or a datetime.
Examples
obclient> SELECT TIME_TO_USEC('2014-03-25'), TIME_TO_USEC(NOW());
+----------------------------+---------------------+
| TIME_TO_USEC('2014-03-25') | TIME_TO_USEC(NOW()) |
+----------------------------+---------------------+
| 1395676800000000 | 1525528100000000 |
+----------------------------+---------------------+
1 row in set
