Date And Time not getting Updated....!

hi everyone, i am calling many batch file from one batch file. the one batch file from which i am calling other batch files contains this echo %DATE:~10,4%-%DATE:~4,2%-%DATE:~7,2% %TIME:~0,2%:%TIME:~3,2%:%TIME:~6,2% Starting the 1st process...! 2nd process...! nth process...! what happens here is windows calculates this value only first time and prints same value every time. and i am using that echo statement for 20 times. so 20 times same time stamp gets printed. and i am not able to see what time is taken by which process. so i want the updated time and date for every process. i want this pattern 2012-05-15 13:59:01. i even stored it in a variable and tried to print....but i got same output...! any suggestions? thank you.

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