Currently, WhatsApp does not show the exact duration of a missed call (how many seconds it rang before being missed). This feature is not available in the app at the moment. If you’re using a mod like the yowhatsapp latest version, keep in mind that such features might still be missing or behave differently. You might consider suggesting this feature to WhatsApp or the developers of YoWhatsapp. Meanwhile, you can check your phone’s call logs, which sometimes record call duration or ringing time separately from WhatsApp.
