So it can be used.
Use? dos
defined variable
A, b, c and d: words;
begin
gettime(a，b，c，d)；
writeln(a，':'，b，':'，c，'.'，d)；
As for converting words into integers, ...
This is not a very good plan. Integer is 16 signed Pascal, which means the range is -32768~32767.
Word seems to be unsigned 16 bits, that is, the range is from 0 to 65535.
Obviously, the parts larger than 32767 are tragic ... when they are forced to turn around, they will become negative, so if you really don't like this word, you must turn it into desire. ...
But if you use word at this time, it seems that it will not actually reach more than 32767, so it doesn't matter if you turn a corner, just direct violence.
Use? dos
defined variable
A, b, c and d: words;
Aa, bb, cc, dd: integers;
begin
gettime(a，b，c，d)；
writeln(a，':'，b，':'，c，'.'，d)；
aa:= a； ? bb:= b； ? cc:= c； ? DD:= d；
writeln(aa，':'，bb，':'，cc，'.'，DD)；
I have no idea what your string conversion has to do with the conversion of words into integers.
You may have misunderstood the word "type" ...
As for string conversion ................................................................................................................................................................................