Thanks a lot Claudio. It helped me much.

Jarek

--- In IBObjects@y..., "Claudio Valderrama C." <cvalde@u...> wrote:

> There's no time-only field in IB5.X and earlier releases. So, you
probably
> are using a default or fixed date in the date part of the timestamp
field
> you use for time only, right? If you stored your time with a trick
like this
> 1900-1-1 time_portion
> so you discard the date portion, to make the sum happen you need to
do
> time_field - '1990-1-1'
> => this will produce a quantity that's the time field represented
as a
> fractionary number. Take this result and add it to the date field.
>
> [.........]