No-Fly Time
After a dive,
appears on the default watch face, along with a no-fly time estimate in hours (Default Watch Face). You should not fly in an airplane during this time. The default no-fly time after a dive is 24 hours. After a gauge dive or a dive that violated the decompression plan, the no-fly time is set to 48 hours.
TIP: You can add the no-fly indicator to a custom watch face (Customizing the Watch Face).