I just checked and Bangle.js recorder writes the current time (not GPS time). So the only way your recorder track should be dated 01/01/1970 is if you didn't set the time up on your Bangle when you started recording the track?
Or... where are you viewing the track? It's possible the viewer has a bug
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
I just checked and Bangle.js recorder writes the current time (not GPS time). So the only way your recorder track should be dated 01/01/1970 is if you didn't set the time up on your Bangle when you started recording the track?
Or... where are you viewing the track? It's possible the viewer has a bug