How to set and synchronize time on Xiaomi Mi Band 4: instruction + error solving

The Xiaomi Mi Band 4 fitness bracelet automatically syncs time with your smartphone via the Mi Fit or Zepp Life app (formerly Mi Fit in some regions). However, sometimes users encounter problems: the bracelet shows the wrong time, does not update the date after switching to winter/summer time or even gets lost after resetting. In this article, we will discuss all the ways to adjust the time, including manual adjustment, time zone binding and solving typical errors.

It is important to understand that the bracelet does not have its own GPS module or connection to time servers - it is completely dependent on data transmitted from a smartphone. So if the phone time is shot down, it will also be incorrect on the Mi Band 4, and problems can arise due to outdated firmware of the bracelet, Bluetooth malfunctions or conflicts with other applications (for example, Google Fit or Apple Health).

Before you start setting up, make sure that:

  • 📱 On the smartphone set the current time (on the option Autodetermine date and time in the settings of the phone).
  • 🔄 Bracelet connected to the Mi app Fit/Zepp Life and synchronized (the cloud icon in the upper right corner of the bracelet screen should be active).
  • 🔋 The charge level of the Mi Band 4 exceeds 20% – at low charge, synchronization may not work properly.
📊 What version of the app you use for Mi Band 4?
Mi Fit
Zepp Life
Both in turn
I don't know/I don't use/

1. Automatic time synchronization through the application

The main way to update time on Xiaomi Mi Band 4 is automatic synchronization with the phone, which happens every time you connect the bracelet to an application or force it to sync.

  1. Open the Mi Fit or Zepp Life app on your smartphone.

If the time is not updated, check the following points:

    Bluetooth enabled on phone | Bracelet charged more than 20% | Mi Fit/Zepp Life app updated | Power saving mode disabled for app-->

    If the time on the bracelet differs from the phone by 1-2 hours after synchronization, most likely, the smartphone settings have the wrong time zone or automatic timing has been disabled. Correct this in the phone settings (System → Date and time).

    2 Manually update time through resetting settings

    If automatic synchronization doesn't work, you can try resetting the bracelet to factory settings, which will delete all the data from the device, but often solves time problems.

    1. After rebooting the bracelet, reconnect it to the Mi Fit/Zepp Life app as a new device.

    After reset, the time should be synchronized automatically. If the problem persists, check:

    • 📲 Bracelet firmware version (in the appendix: Profile) → For the Mi Band 4, the current version is 1.0.9.54 or later.
    • 🔧 Time zone settings in the application (path: Profile) → Settings → Time zone).
    What if the bracelet does not connect after resetting?
    If the Mi Band 4 doesn’t connect to the phone after reset, try: 1. Reboot the smartphone. 2. Remove the bracelet from the list of conjugated devices in the phone’s Bluetooth settings. 3. Install an alternative app (e.g. Notify & Fitness for Mi Band). 4. Update the bracelet firmware via Mi Fit (if available).

    ⚠️ Attention: Resetting removes all data from the bracelet, including your steps, sleep and workout history. Before the procedure, export the data in the application (Profile) → Export of data).

    3.Time problems after firmware update

    Sometimes, after a firmware update, the Xiaomi Mi Band 4 starts showing the wrong time or even resets the date to January 1, 2000, due to errors in the new version of the software or a conflict with the phone's settings.

    Problem.Reason.Decision
    Time is lost by 3-4 hoursWrong time zone in the appManually set the time zone in Mi Fit → Profile → Settings
    Date reset for 2000Failure after firmware updateReset the bracelet and re-synchronize
    Time is updated only after manual synchronization.Background activity of the application is disabledAllow auto-start and background work in phone settings
    The bracelet shows the time 1 hour back/forwardNo change in winter/summer time is included.Update the firmware bracelet or manually adjust the hour in the settings of the phone

    If the problem occurs after the update, try rolling back the firmware to the previous version.

    1. Remove the bracelet from the Mi Fit app.
    2. Download the old firmware version (e.g. 1.0.8.28) from the XDA Developers forum.
    3. Use the Mi Band 4 Tools utility for manual firmware.

    💡

    Before rolling back the firmware, back up the bracelet data via the Mi Fit application (Data Export section).

    4. Time zone and time format setting

    Xiaomi Mi Band 4 takes the time zone from the phone, but sometimes you need to manually adjust it, for example, if you're traveling and you don't want to change your smartphone settings.

    1. Open the Mi Fit or Zepp Life app.
    2. Go to Profile → Settings → Time Zone.
    3. Select the desired time zone manually (for example, UTC+3 Moscow).
    4. Synchronize the bracelet by pulling the screen down.

    You can also change the format of the display time (12-hour or 24-hour):

    • 🕒 Annex: Profile → Settings → Time format.
    • 📱 On the phone: Settings → System system → Date and time → Time format.

    If the bracelet does not respond to format changes, try:

    1. Disable and reconnect the bracelet in the application.
    2. Update the Mi Band 4 firmware to the latest version.

    💡

    The time zone in the bracelet and phone should match. If the smartphone has automatic detection, but the bracelet shows the wrong time, try to set the belt manually.

    5. Solving synchronization issues on Android and iOS

    Time issues on the Mi Band 4 are often related to the features of Android or iOS.

    Android.

    • 🤖 Energy saving blocks Mi Fit background work: Add the app to exceptions: Settings → Battery → Optimizing the battery → All applications → Mi Fit → Not optimize.
    • 📵 Bluetooth turns off automatically: Turn off Adaptive Bluetooth in your phone settings or use apps like Bluetooth Auto Connect.

    On iOS (iPhone)

    • 🍎 Mi Fit does not update time in the background: Enable Background Content Update for the app: Settings → Mi Fit → Updating background content.
    • 🔒 Location restrictions: Allow the application to access geodata: Settings → Confidentiality → Geolocation services → Mi Fit → Always.

    If none of these methods helped, try reinstalling the app:

    1. Remove Mi Fit/Zepp Life from your smartphone.

    ⚠️ Attention: On iPhone with iOS 16+ There may be a conflict between Mi Fit and system time settings, in which case only a complete reset of the bracelet and re-pairing will help.

    6. Alternative ways to adjust time

    If standard methods do not work, you can use third-party applications or manual settings:

    Method 1: Notify & Fitness for Mi Band

    This application allows you to manually adjust the time and other parameters of the bracelet:

    1. Install Notify & Fitness from Google Play.
    2. Connect the bracelet to the app.
    3. Go to Settings → Time and Date.
    4. Set the right time manually and save the changes.

    Method 2: Manual synchronization via ADB (for Android)

    For experienced users, there is a way to update the time through ADB-team:

    adb shell am start -n com.xiaomi.hm.health/com.xiaomi.hm.health.sync.SyncActivity

    This command is forced to run the synchronization.

    1. Turn on USB debugging on your phone.
    2. Connect your phone to your PC and execute the command in ADB Shell.
    What is ADB and how to install it?
    Android Debug Bridge (ADB) is a debugging tool for Android devices. To use it: 1. Download Platform Tools from Android Developers. 2. Unpack the archive and open the command prompt in the folder from adb.exe. 3. Connect the phone to your PC and enter adb devices to check the connection. Detailed instructions can be found on the 4PDA or XDA forums.

    Method 3: Using the web version of Mi Fit

    In some cases, synchronization through the web version of Mi Fit helps:

    1. Go to https://account.huami.com/.
    2. Sign in under your account.
    3. Find the Devices section and start synchronization.

    7. Frequent errors and their solutions

    Let's take a top.-5 Mistakes that make time for Xiaomi Mi Band 4 may not work properly:

    Mistake.Possible causeHow to fix it
    Time is not updated after synchronizationConflict with other fitness apps (e.g. Google Fit)Turn off sync with other services in Mi Fit settings
    The bracelet shows the time with a delay of 1-2 minutesDelay due to weak Bluetooth signalReboot your phone and bracelet, then re-sync.
    After the battery was replaced, time went down.Resetting settings due to power outageSynchronize the bracelet again through the application
    The time on the bracelet and phone is 1 hour differentNo change in winter/summer time is included.Update the bracelet firmware or manually adjust the hour in your phone settings
    The bracelet shows the time in a 12-hour format, on the phone 24-hour.Display settings failureReset the bracelet to factory settings and connect again

    If none of these methods worked, please contact Xiaomi Support via the official website or forum.

    • 📱 Smartphone model and OS version.
    • 🔋 The bracelet firmware version (Mi Fit) → Profile → The bracelet).
    • 🔄 Detailed description of the problem (when it started, after what actions).
    Why does Mi Band 4 have a time to lose after charging?
    This can be due to unstable contact during charging or battery failure. Try: Use a different charging cable; reset the bracelet to factory settings; update the firmware through the Mi Fit app; If the problem persists, you may need to replace the battery.
    Can I set a time for Mi Band 4 without a phone?
    No, the Xiaomi Mi Band 4 doesn't have its own time module and is completely dependent on syncing with your smartphone. Without connecting to Mi Fit or Zepp Life, the bracelet will show the time it was at the time of the last synchronization, but not update it. The exception is if you use alternative firmware (such as Custom Firmware) that adds this feature. However, this is an informal decision and can lead to a loss of warranty.
    How to change the order of the date and time on the screen?
    The date and time format is set up via the app: Open Mi Fit or Zepp Life. Go to Profile → Settings → Time format. Select the desired format (e.g. PM:MM or MM/DD). If the option is not available, upgrade to the latest version.
    The bracelet shows the time as 3 hours ago.
    This problem is usually associated with the wrong time zone. Check: Time zone settings on your phone (Settings → System → Date and Time). Time zone settings in the Mi Fit app (Profile → Settings → Time zone). The firmware version of the bracelet — if it is outdated, update it. If nothing helps, reset the bracelet to factory settings.
    Can I sync the Mi Band 4 with multiple phones?
    Officially, the Xiaomi Mi Band 4 only supports one device at a time, but you can manually reconnect it to different smartphones: Disconnect the bracelet from the first phone in the Mi Fit app. Connect it to the second phone as a new device, and the data from the bracelet will be erased with each new connection.