Bosch Nyon: set the time (usually automatic)
The Nyon takes time from GPS, from the paired phone (BUI350 via eBike Flow) or from Wi-Fi (BUI275), so it is rarely wrong; a manual setting exists for the time zone and format. One minute.
Step by step
- Switch the Nyon on and wait for the GPS icon or a connected app; the time syncs by itself.
- If it is off by whole hours: Settings (gear) > 'System settings' > 'Time' / 'Time zone' and choose your zone; daylight saving is then handled automatically.
- Set 'Time format' 12h/24h in the same place.
- BUI275 without app or Wi-Fi: set hours and minutes manually under System settings > Time.
- Return with the back arrow.
Tip: A Nyon that is exactly one hour off has the wrong time zone selected, not a broken clock.
Can't find it?
If the time keeps resetting on a BUI275, the display's buffer battery is worn; keep it mounted and on, or have it checked. If the Nyon never gets a GPS fix indoors, take it outside for a minute.
Frequently asked
Does the Nyon adjust for summer time?
Yes, from GPS/phone/Wi-Fi once the time zone is right.
Can I set the date?
Date comes from GPS or the app; it is not set by hand.
Why is the time wrong just after switching on?
It updates within a minute once GPS or the phone connects.
Manuals and video
- Bosch eBike Help Center: official error-code index
- Bosch eBike downloads: quick start guides and battery guide
- Bosch eBike dealer search (DiagnosticTool readout)
Other Bosch Nyon guides
Bosch Nyon: change the display language (BUI350 and BUI275)Bosch Nyon: switch from mph to km/h (or km/h to mph)Bosch Nyon: reset the trip distance and ride statisticsBosch Nyon: wheel circumference (dealer-set)Bosch Nyon: change assist modes and customise them (BUI350)Bosch Nyon: activate and use eBike LockBosch Nyon: set the display brightness and night modeBosch Nyon: pair with eBike Flow (BUI350) or eBike Connect (BUI275)Bosch Nyon: update the firmware (Flow, Wi-Fi or dealer)Bosch Nyon: enable and use walk assistBosch Nyon: turn the lights on and off, automatic and always-on lights
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.