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Knowledge Base document #3406

Time change does not work

The automatic change to summer or winter time does not work. The FRITZ!Box and some or all of the registered cordless phones still display the time that was valid before the time change.

Simply proceed as described below. After each measure, check whether the problem is solved.

Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.

1 Restarting the FRITZ!Box

Restart the FRITZ!Box. After the restart, the FRITZ!Box receives the time from a time server on the internet.

  1. Click on 'System' in the FRITZ!Box user interface.
  2. Click on 'Backup' in the 'System' menu.
  3. Click on 'Restart FRITZ!Box' and then on 'Restart'. 
    • If 'Restart FRITZ!Box' is not displayed, click on the 'Restart' tab and then on the 'Restart' button.

2 Switching the phone off and on again

Restart your cordless phones. After the restart, the phones receive the time from the FRITZ!Box's time server.

  1. Press the end call key (red handset) on the phone until the phone turns off.
  2. Press and hold the end call key again until the phone turns on again. 

3 Configuring the FRITZ!Box

Setting the country of use

The FRITZ!Box automatically sets the times based on the country of use that is configured.

  1. Click on 'System' in the FRITZ!Box user interface.
  2. Click on 'Region and Language' in the 'System' menu.
  3. Click on the 'Regional Options' or 'Region' tab. If the tab is not displayed, then the FRITZ!Box is configured for use in Germany and the country of use cannot be changed for this FRITZ!Box model.
  4. Select your country from the drop-down list. If your country is not displayed, select 'Other country'.

    Important:When the regional options are changed, the phone settings (for example telephony devices, call diversion settings, dialling rules) are reset and must be reconfigured.

  5. If you are asked for the time zone, select the correct time zone.
  6. Click on 'Apply' to save the settings.

Setting the time zone

  1. Click on 'System' in the FRITZ!Box user interface.
  2. Click on 'Region and Language' in the 'System' menu.
  3. Click on the 'Time Zone' tab.
  4. If you are using the FRITZ!Box in a country with one time zone and the country is configured under 'Region', disable the 'Set the time zone manually' option. From now on, the FRITZ!Box will set summer and winter time automatically.
  5. If 'Other country' is selected as the country of use in the FRITZ!Box or you are using the FRITZ!Box in a time zone that differs from the configured country of use (for example in the Azores or Canary Islands), configure the time zone manually:
    1. Enable the 'Set the time zone manually' option.
    2. From the drop-down list, select the difference between your time zone and GMT (Greenwich Mean Time) in hours.

      Example:
      You are using your FRITZ!Box in the Azores (Portugal). Select 'GMT -1 hour' from the drop-down list to manually set the time zone in the FRITZ!Box.

    3. If you are using the FRITZ!Box in a region with summer and winter time, you must enable the 'adjust to daylight savings time automatically' option when summer time starts and disable it again when winter time starts.
  6. Click on 'Apply' to save the settings.
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