When making a time interval into a literal in decimal representation, the data is represented as hhmmss. in terms of hour (hh), minute (mm), second (ss), and a sign (t), in fixed point with a precision of 6 and a scaling of 0.
Any time interval literal in decimal representation, when specified where time interval data is required, is converted into the time interval data type.
An example of turning a time interval into a literal in decimal representation is given as follows: