TIMESTAMP in Teradata

TIMESTAMP consists of six primary fields listed below,
YEAR, MONTH, DAY, HOUR, MINUTE, SECOND

Example:
TIMESTAMP '2000-08-25 10:30:01'


Teradata implicitly converts char type to timestamp.

How can we use ?
SELECT item, quantity, saletime
FROM sales
WHERE saletime > TIMESTAMP '2012-08-25 10:24:59'
AND saletime < TIMESTAMP '2012-08-25 10:44:01';