Can't alter time format from 12 hour to 24 hour in the GCM app. I can change it, but even after the auto save it switches back to 12 hour. This has recently been altering the clock face on the VAHR from 24 hour back to 12 hour when syncing with GCM.
I found somewhere else that the trick here is to set the time format to 24 hours via Garmin Connect Web by logging in and clicking the watch icon then select Device Settings for your device and sure enough my device was set to 12 hour format. After changing to 24 hour and re-syncing, all is good. Hope this helps.
