From: Clement Ow <clement.ow@...>
Date: 2008-04-16T18:56:04+09:00
Subject: Calculating elapsed time

I have a program where i put the time at the beginning:
puts $t1=Time.now

and then after running some commands, i put the time again:
puts $t2=Time.now

and then have a method to calculate the time elapsed:
def calTime
starttime_sec= $t1.strftime("%S").to_i
starttime_min= $t1.strftime("%M").to_i
endtime_sec= $t2.strftime("%S").to_i
endtime_min= $t2.strftime("%M").to_i
diff_sec= endtime_sec - starttime_sec
diff_sec1= diff_sec.to_s
diff_min= endtime_min - starttime_min
diff_min1= diff_min.to_s
puts "\nElapsed time:\n "+ "Min-> " +diff_min1 + " Sec-> "+ diff_sec1

However, the calculation has limitations because if the start time is
say, 4:50 and the end time is 5:10, it will return an errorneous value
like -49 for the Min value, which is obviously not what we want..

Any alternative method or any corrections to the method are welcome. ;)
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