time difference on multiple day

[woo]

hello,

please help

Have start_time and end_time in date format and need difference in hh:mm:ss 

have 

start_time          end_time

  3:00:00            5:00:00

21:00:00          25:10:23

16:25:00          18:50:10

20:15:34          20:16:50 

21:00:00            1:25:55 /*here end_time is next day time*/

want

time_difference

2:00:00            

4:10:23         

2:25:23          

0:01:16         

4:25:55

below logic is working fine but not for last record, it is giving negative number becasue end_time is in next day

time_difference=end_time-start_time;

format time_difference time8.;

[SASKiwi · Accepted solution]

if end_time - start_time < 0 then time_difference = end_time - start_time + '24:00:00't;
else time_difference = end_time - start_time; 

[woo]

Thanks SAS KIWI - it worked fine, appreciate your time