Dear all,
I would like to ask your help regarding handling time stamps in R. I think first I need a reference to read about their logic and how I should handle them.

For example, this is a struct I have 


str(MyStruct$TimeStamps)
 num [1:100, 1:6] 2011 2011 2011 2011 2011 ...

MyStruct$TimeStamps[1,]
[1] 2011.000   10.000    6.000   16.000   23.000   30.539

the last field contains seconds.milliseconds.

How I can for example make calculations with time stamps like see if the 
MyStruct$TimeStamps[1,]-MyStruct$TimeStamps[2,] differ more than 300millisecond, or 3 days have passed?

I would like to thank you in advance for your suggestions

B.R
Alex

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