Rajesh Kumar Mallah <mallah(at)trade-india(dot)com> writes:
> SELECT CAST (timeofday() as timestamp with time zone) - CAST (now() as timestamp with time zone);
> shudn't it return something close to 0 ?
Works for me ... what's your platform, PG version, and timezone?
And what are you getting from the intermediate steps in that expression?
regards, tom lane