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The page goes over timestamp conversion in a spreadsheet, with a demonstration in OpenOffice Calc (formulas apply to Excel also).
Note that the conversion is for UTC -7 where we are located, so adjust the conversion formula for + 5.5 hours (+ 0.229166667 days) instead of - 7 hours (- 0.291666667 days). The demonstration formats time to MM/DD/YYYY HH:MM:SS , which is down to seconds. Use a custom format like MM/DD/YYYY HH:MM:SS.000 for milliseconds (the .000 is milliseconds).
The LJLogUD timestamp is discussed here:
https://labjack.com/support/software/applications/ud-series/ljlogud/ljlo...
The page goes over timestamp conversion in a spreadsheet, with a demonstration in OpenOffice Calc (formulas apply to Excel also).
Note that the conversion is for UTC -7 where we are located, so adjust the conversion formula for + 5.5 hours (+ 0.229166667 days) instead of - 7 hours (- 0.291666667 days). The demonstration formats time to MM/DD/YYYY HH:MM:SS , which is down to seconds. Use a custom format like MM/DD/YYYY HH:MM:SS.000 for milliseconds (the .000 is milliseconds).