Changing summer time on table time

Changing summer time on table time

Hi
we have a table containing several data, including a column with a date and time (in this format 2023-02-17∙08:40:56.000).

I need to add an hour (+1 hour) to some cells, those of the period between march and october, but I cant find how to do.

I usually transform data before importing Zoho Analytics or use DATA PREP menu but in this case, data are already imported in ZA and I can't figure how to do that.

The function "Replace" of the DATA PREP menu, offers me a good filter to filter data to apply changes but i can't find a way to add +1hour to the filterd dta.

Any suggestion ?

Thanks in advance