The time displayed on your ScanWatch Light is based on the time of your mobile device. ScanWatch Light can display the time in 12-hour or 24-hour format. To change the time display of watch, go to the Settings of your smartphone before configuring or syncing the ScanWatch Light with the Withings App. 

The first thing you should do if the time is incorrect is synchronize your ScanWatch Light with the Withings App so that it can retrieve the correct time. This can be useful if you've recently changed timezones for example. Simply open the app to force the synchronization.

If the time is still incorrect after that, try calibrating your watch to set the correct position of the hands. To do so, please follow these steps:

1. Open the Withings App.
2. Go to Devices.
3. Scroll to your ScanWatch Light.
4. Tap All settings > Set the time.
   
5. The watch hands will reset their placement (automatic initialization).  
   
6. Tap Yes if the hands of the watch are all pointing up.
   Your watch will now display the right time.
   
7. Tap No if the hands of the watch are not pointing up.
   The next screen will let you position each hand correctly.
8. Tap Next to begin setting the position of the watch hands.
   
9. Set the minute hand to noon by moving the dial and tap Next.
   
10. Set the hour hand to noon by moving the dial and tap Next.
    
11. Tap Done.
    
12. Your watch should now display the correct time.

If the issue persists after calibrating the hands, it can mean one of a few things:

• The battery of your watch is running low, in which case you should charge it.
• Wearing your watch too close to the wrist can lead to accidental pressing on the crown during workouts, leading to a 20-second time lag which will affect the watch hands. This time lag can accumulate over time and lead to larger discrepancies between the digital and analog time displays. In order to avoid this, please make sure that your watch is properly worn at all times.
  
• There might be a mechanical issue with your ScanWatch Light, in which case you should contact Customer Service using the Contact us button at the bottom of the page.