HapticTime

Rotate your iPhone and hear the haptic feedback at the clock hands.

Start it and tilt your iPhone with the long axis forward by directing the screen towards the direction where the hands should be (top, bottom, sides), when you hear the haptic feedback you have met the hour hand (stronger) or minutes.

If you want to fix a notification touch and hold the screen for a few seconds pointing it towards the desired time, when you start to feel a vibration you will have fixed the time. Move to the direction of the minute hand and leave the screen, when the vibration stops you will have haptic feedback and you will also have fixed the minutes. Alternatively, quickly rotate the device on the short axis (with a tap on the back) to fix a notification.
Feel the cleats on hours as you tap the screen. Shake or make a swipe to clear the notification.