On 2008-08-21 11:09, Ow Mun Heng wrote: > I want to find out if there's a method to change this > select to_char('1 day 09:18:42.37996'::interval,'HH24:MI:SS') > to something like > 24+9(hours) = 33:18:42 instead of returning It as 09:19:42 That's because 1 day doesn't always have 24 hours, because there are daylight saving times. 1 month can also have various number of days or hours. If you want 1 day to be always 24 hours then: select date_part('day', t)*'24h'::interval + t-date_trunc('day',t) from (select '1 day 09:18:42.37996'::interval as t) as s; It will not work for intervals with months. I'm not sure for negative ones. Regards Tometzky -- ...although Eating Honey was a very good thing to do, there was a moment just before you began to eat it which was better than when you were... Winnie the Pooh