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Editing Garmin 310xt files

Fergus WhelanFergus Whelan
in General Training Discussions

Sometimes, not very often to be fair, when I use my Garmin 310xt indoors (i.e. with the GPS turned off) the date stamp is wrong.  When I upload the data, I have to search for the file as it could be anywhere in the sequence of data files.

 

Does anybody have any experience of editing the datestamp on these files so that I can reload them to Garmin Training Centre and Golden Cheetah with the correct date?

 

Thanks,

 

Fergus

Comments

  • charrischarris

    For starters, you have a defective 310XT (it's a known hardware problem) - I'd get Garmin to replace it with a good one.

    As for editing existing stuff, what happens if you just change the date in Golden Cheetah (on the Workout tab - the Start Date)?
  • GSmith821GSmith821

    Have you tried firing it up with GPS on outdoors prior to turning GPS off?  it is often that after I charge mine, the time it went "discharged" is the time/date it shows before it connects with satellite.

     

     

  • jhbinscjhbinsc

    Good idea George. That's what I'do too.

  • Fergus WhelanFergus Whelan

    Thanks for the feedback guys.

     

    The frustrating part is that this only happens sometimes.  I have written to Garmin to see what their official response will be.  If I get any clarity I will post.

     

    Fergus

     

  • Cary BlancoCary Blanco
    Hey Fergus!

    Sorry for the delayed response, I been away from the forums for a while.

    The 310xt uses a binary .FIT as its native file format - you probably won't easily be able to edit this.

    The ANT agent also gives you a .TCX file which is Garmin GPS data as a plain text XML file. While you can hand edit this file, in practice this would be difficult because every datapoint has its own timestamp, each datapoint would need to have its timestamp offset by what ever value you need. If you're good with scripting languages you could write some code to find any timestamp within the TCX file and offset the value OR use an intermediary Application (such as Ascent for Mac OS X) that can do offsets and then re-save the TCX file.

    If you have a file or two that needs tweaking, PM me and we can work out getting me the files. I'd be happy to run them through Ascent and shoot them back to you.

    Peace,

    Cary
  • Fergus WhelanFergus Whelan
    Thanks Cary,

    I'll try your suggestion and get back to you if I have any problems.

    Fergus
  • Cary BlancoCary Blanco
    Fergus,

    I since written that script (in Ruby) to go through a TCX file and offset the times so this would be no problem.

    Yes, I needed to exercise my brain and I thought this would be a good project.

    PM me if you want me to run through it.
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