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Find Time Difference Between Two Dates


I have the following MySQL query and I would like to find the time difference in days, mins, hours between the current time and the "end_date" field (which is a datetime filed).

PHP Code:

select auctions.end_date,domains.* from domains left join auctions on auctions.domain_id = domains.id where end_date > now() and active='1' order by end_date desc limit 10




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SQL
SELECT
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now

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I am saving the result into a temporary table and what it gives me is the total number of minutes spent on the selected activitynos...

My question is: if a result from this query is for example 123 (and 123 minutes is the correct number of minutes-2 hrs and 3 minutes) how can I show this result as a date field in MySQL? that is as 02:03:00?
I tried setting the field type to date when creating the temporary table but that just made a mess of the actual number of minutes.
Anybody have any ideas?


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===========================================

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