to get same timestamp for two different files

Hi Experts,

   I have a situation here. SAP PI is generating two files, one .txt and other .xml file. data fields are completely different in both the files.

I have written a udf to get the date and timestamp (yyyymmddHHmmss)  appended to the file name . for e.g Filename_timestamp.

Now both the files are getting generated with a difference of 1 sec.

My requirement is to get the same date and timestamp for both the files.

I assume, if we create a global variable in one mapping and then use the same in another mapping, then its possible.

please help me out here.

Regards

Veeru