Modern wearables from Chinese giant Xiaomi have long since ceased to be just pedometers, becoming full-fledged digital assistants. However, the basic functionality of any device, whether it is the Mi Band 6, Mi Band 7 or the latest Smart Band 8, begins with the correct display of current time. Errors in the readings of the clock can lead to incorrect counting of sleep statistics, missing important notifications and malfunctioning of the alarm clock, which negates all the benefits of wearing a tracker.
Many users mistakenly believe that there is a separate menu or a complex combination of buttons to set the time on the wristband. In fact, the Mi Fit and Zepp Life ecosystem is built on the principle of automatic synchronization with a smartphone. This means that the wristband does not have its own time settings in the classical sense, but acts as a mirror display of your phone data. Understanding this principle is the key to solving 90% of the problems with desynchronization.
In this article, we will take a closer look at the initial setup process, explore the reasons why time can run or lag, and learn how to properly configure travel time zones. You will learn how to forcefully update data, why 12 or 24 hours are important, and what to do if automatic synchronization stops working. We will also discuss the technical nuances of Bluetooth protocol that can affect the transmission of time stamps between devices.
The principle of synchronization of time
A fundamental feature of all the fitness trackers in the Xiaomi Mi Band line is that there is no built-in GPS module for the user to adjust the time. The whole logic of the time tags is tied to the paired smartphone. When you open the companion app, there is a handshake procedure, during which the phone transmits current data about the time, date and even seconds to the tracker, this is done to simplify the interface and save battery power on the bracelet itself.
The data transfer process takes place via Bluetooth Low Energy (BLE), which provides a stable connection with minimal power consumption. It is important to understand that the wristband does not store time on its own for a long period after discharging or rebooting. If you completely discharge the device or reset it to factory settings, once turned on, it will show the time of the last successful sync or reset to zero until it receives a new data packet from the phone.
⚠️ Warning: If your smartphone is running out of time or has a non-standard time zone on, the bracelet will automatically copy this incorrect data. Always check your phone's system settings before syncing.
There are several scenarios where synchronization may not happen instantly. For example, if an application is running in the background with Android limitations, it may not be allowed to maintain an active connection at all times. In such cases, the time on the wristband may be several minutes or even hours behind until you force the application to open to update data, which is why access to background activity for Zepp Life or Mi Fitness applications should be allowed.
Preparation for setting up and installing applications
The first step to getting your gadget running properly is installing official software. Xiaomi's ecosystem currently uses two main apps: Zepp Life (formerly known as Mi Fit) and the new Mi Fitness. The choice of app depends on your device model and personal preferences, but the timing algorithm is identical. Make sure you download the app from the official Google Play store or App Store to avoid malicious code.
After installing the application, you need to register an account, it can be a Xiaomi account, Google or Facebook, registration is required to keep statistics and the correct operation of cloud services, which can also affect the synchronization of profile settings, including time zone. When registering, it is important to specify the correct region, since it depends on the server that your device will communicate with.
For successful pairing and time setting, follow the following steps:
- 📱 Make sure that your smartphone is Bluetooth enabled and GPS (geolocation, as it is a mandatory requirement for Android BLE-device.
- 📲 Charge the bracelet to minimum. 20-30%, so that the setup process is not interrupted due to a sudden shutdown.
- 📶 Check the stability of the Internet connection, as the exact time is often loaded through the Internet. NTP-servers at the first start of the application.
- 🔐 Allow the application to access all requested permissions, especially location and notifications.
Once you add the device to the app, it automatically requests permission to synchronize system time. You can have a pairing request on your smartphone screen that you need to confirm. If you use Android, the system can request permission to access contacts and call logs — this is to display the name of the caller on the bracelet screen, but does not directly affect the clock.
Step-by-step instructions for synchronization
The time setting process doesn't require manual digits, it's automatic, but it's important to know where to check the sync status and how to force the update if you notice a discrepancy. Once the device is successfully paired with the phone, the app immediately sends a packet of data with the current time. The bracelet screen may display a phone icon or update animation at that point.
To make sure the time is set correctly, follow the following sequence of steps: First, unlock your smartphone and make sure it displays the right time. Then open the Zepp Life or Mi Fitness app and go to the home screen where your tracker's connection status is displayed. Pull down the device list for a forced upgrade.
Here's what the process looks like in detail:
- Launch the application on your smartphone and wait for the status “Connected”.
- Go to the profile of the device by clicking on the icon of your bracelet.
- Find the option “Settings” or “Watch Faces”.
- If the time on the bracelet is different, try changing the dial to any other, and then return the original one - this often triggers the retransmission of time stamps.
☑️ Verification of synchronization
It’s worth noting that in some firmware and app versions, the time format settings (12/24 hours) can be hidden in deep menus or depend on the phone’s system settings. If you want to change the format, try doing this first in the smartphone settings (Settings → Date and Time), and then sync the bracelet. In most cases, the tracker simply copies the format chosen on Android or iOS.
Setting up time zones for travel
For people who travel frequently between countries or regions at different times, the correct operation of time zones becomes critical. Xiaomi fitness bracelets do not have built-in GPS-The module (except for some Pro models), so they can't independently determine the change of geographical location and adjust the time.
When you arrive in another country, the first thing you need to do is change the time zone on the phone itself. Most modern smartphones do this automatically when geolocation is turned on and the Auto Time Zone option is turned on. Once the phone updates its system time, you need to open the companion app and wait for the sync to happen, the bracelet will get a new time stamp and adjust the readings.
But there's a little bit of a nuance about summertime, and when you're in different countries, you're going to have to switch to daylight saving time, or you're going to cancel it altogether, and if your phone is set up correctly, but the bracelet is an hour shifting, the problem might be in the app's cache, and in those cases, you can completely reconnect the device, remove the bracelet from your Bluetooth settings, forget the device in the app, and do the pairing again.
| Situation | Action on the phone | Action in the annex | The result on the bracelet |
|---|---|---|---|
| Flight to another time zone | Insert geolocation | Open and update | Time will change automatically. |
| Transition to daylight saving time | Check the system update | Synchronize data | +1 hour shift |
| Manual time change | Change the OS settings | Forced renewal | Copying manual settings |
| Failure after discharge | Set the right time | Reconnect the device | Re-establishing the current time |
Solving problems with desynchronization
Despite the fact that the processes are fine, users may find themselves in a situation where the time on the bracelet no longer coincides with the phone, this can be due to errors in the operation of the Bluetooth stack of the operating system, energy-saving Android algorithms or bugs in the application itself. If you notice that the bracelet is lagging or in a hurry, do not rush to carry it to the service center, in 99% of cases the problem is solved software.
The first thing you need to do is check the permissions for the application. Modern versions of Android (especially 12, 13, 14) are very aggressively "killing" background processes. → Annexes → Zepp Life (or Mi Fitness) → Battery and select "No Limits" or "No Limits" mode, which will allow the app to keep in touch with the wristband and update the time in time.
The following factors should also be taken into account:
- 🔄 App cache: Cleaning the app cache in phone settings can eliminate synchronization errors.
- 📶 Bluetooth Version: Outdated Bluetooth drivers on the phone can cause connection breaks, causing time to be lost.
- 🔋 Energy Saving: Ultra Energy Saving on Phone Can Block Background Operation of Tracker Apps.
- 📲 Firmware Update: Check if a new firmware version is available for the bracelet itself in the app, as manufacturers often fix timing bugs.
⚠️ Warning: If time continues to fly away after all the manipulations, try to completely uninstall the app, restart the phone, re-install the app and tie the bracelet as a new device.
In rare cases, the problem may be due to the account itself: If you have changed your account region or used different apps to link the same bracelet, there may be profile conflicts, in which case a complete reset of the bracelet to factory settings through the device menu on the tracker itself (More → Settings → Unbind / Factory Reset).
Selection and setting of dials
While the time is automatically set, the user can influence how it is displayed. The dial store in the Zepp Life and Mi Fitness apps offers thousands of options. Some dials only show hours and minutes, others show the full date, day of the week, and even seconds. The choice of dial can affect the convenience of reading information, but not the accuracy of the clock.
When you install a new dial, you download data from your phone to your wristband, and you also update the time stamps, and if you have a custom dial (your photo or a complex design), it will synchronize as well as the standard dial, but you have to consider that complex animated dials consume more energy, which can theoretically affect the stability of the system as a whole, although this rarely affects the accuracy of time.
MM.GYG or MM.DD.GYG also depends on the regional settings of your account and phone. If the bracelet displays a date in a format you don't understand, check the region in the application settings. Changing the region may require re-authorization, but this ensures that all local settings, including time and date, are correctly displayed.