Phone call elapsed time wrong

Was on a phone call today with the iPhone 16 Pro paired to my Fenix 8.  Call timer on phone was displaying 15:32 (15 mins 32 seconds) and counting up.  Watch was displaying the elapsed timer as 3:32:45 and counting up - seems it was interpreting the call timer on the phone as military time or something and showing it as 3hrs 32 mins and 45 seconds, counting up. Anyone else observe this? iOS 18.2 final release, Fenix software 12.22