time command

I have to examine the time taken for the execution of a c program..

I tried

Code:

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    time ./a.out

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and this is what i got:

Code:

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    the reqd output ..


real    0m0.004s
user    0m0.000s
sys    0m0.010s

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does it show the output in milli-seconds?? or, what does the output really mean?

Read the manual on the time command perhaps?