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# How to covert elasped time and calculating the time difference

I have imported a data set from excel and I want to calculate the difference between two columns, StdTime and FinTime.  The format in SAS data set looks like this:

StdTime     FinTime

5:30.45      5:33.02

4:20.10      4:15.14

6:03.55      6:05.21

where the text above read as m:ss.millisec and the time should be less tha 10mins.

I want to add a column to my existing data set for the time difference between these two columns for each row but it seems the time format is not readable by SAS.  Please kindly help and thank you for your attention.

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Solution
‎07-02-2016 02:21 AM
Posts: 5,519

## Re: How to covert elasped time and calculating the time difference

You can read them this way:

``````data test;
input (t1 t2) (\$);
StdTime = input(cats("0:",t1),anydttme11.);
FinTime = input(cats("0:",t2),anydttme11.);
difTime = FinTime - StdTime;
format StdTime FinTime difTime time12.2;
drop t1 t2;
datalines;
5:30.45      5:33.02
4:20.10      4:15.14
6:03.55      6:05.21
;
proc print; run;

``````
PG

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Solution
‎07-02-2016 02:21 AM
Posts: 5,519

## Re: How to covert elasped time and calculating the time difference

You can read them this way:

``````data test;
input (t1 t2) (\$);
StdTime = input(cats("0:",t1),anydttme11.);
FinTime = input(cats("0:",t2),anydttme11.);
difTime = FinTime - StdTime;
format StdTime FinTime difTime time12.2;
drop t1 t2;
datalines;
5:30.45      5:33.02
4:20.10      4:15.14
6:03.55      6:05.21
;
proc print; run;

``````
PG
New Contributor
Posts: 3

## Re: How to covert elasped time and calculating the time difference

I changed your code a little bit to fit as a data set column and works flawlessly. Thanks for your solution.
☑ This topic is solved.