Time format and absolute time when exporting data

[Jens Noriʇzsɔɥ]

Thanks. It is mostly an Android specific problem as on iDevices there is no way to enforce the use of GPS. That's why I have got a location right from the beginning whereas your smartphone has to wait for a first fix, leading to the gap. BTW, this is just a problem of the location service.

This is less straightforwardly fixable: the various “time standards” run at different accuracies, i.e. perhaps no exact sync possible, and only absolute time carries leap seconds that should be taken care of.

For the moment, there is apparently no way around to establish your location first, for instance by a test run, and then start the actual measurement.