How to save exact time in file

Hello, I am using DAQmx to datalog some information. Sampling rate is 1Hz while I only need to log the data in to file every 30s. How can I resample the data and save the data into a file with correct time stamp?
Thank you very much

All you need to do is utilize the Time and Dialog functions and then put it in a While Loop with a time interval of, in your case, 30 seconds.
I am attaching a VI that shows the acquisition of data and the acquisition of time and date which is then placed in spreadsheet form into Microsoft Excel.
Good luck.
Attachments:
Wave Plot 2.vi ‏217 KB

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