Modern smartphones, including the flagship Xiaomi Mi 9, rely on system time accuracy to run dozens of apps correctly. From bank transactions and instant messengers to task schedulers and automatic backups, the right timestamp is critical everywhere. If the watch is in a hurry, lags behind or even shows the wrong date, it can lead to login errors in Google account and connection security problems.
The MIUI operating system installed on your device has a flexible mechanism for managing time parameters, the user can fully trust automatic synchronization through Internet service providers or manually set the necessary values, but sometimes the system fails, requiring the owner of the gadget to intervene to force the data to be corrected.
In this article, we will discuss in detail all available methods of setting. We will consider the regular menu tools, features of working with the user. SIM-You will learn to quickly eliminate the out-of-synchronization that often occurs after traveling or resetting.
Basic automatic configuration via the network
The easiest and most reliable way to get an accurate time is to use the built-in sync function, the smartphone communicates with the provider or Google servers and adjusts its internal clock, which requires making sure that the device is connected to the Internet.
Go to the main settings menu, scroll down to the "Additional" section and select "Date and time." Here you will see the "Use Network Time" switch. If you activate this option, the date and time input fields will become gray (inactive) as the system takes over.
It's important to understand that when you set the time zone automatically, it's also very convenient when you're traveling: when you fly to another country, the phone will change hands, but sometimes the geolocation doesn't work properly, and the phone can misidentify the region, which will cause you to shift the time by several hours.
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If you travel frequently between time zones, turn on the “Time Zone Auto-Detection” option in the same menu to avoid manual edits in each new city.
If the automatic setting is active but the time is still incorrect, try switching flight mode for a few seconds to update the registration on the network of the cellular operator. Often this helps the smartphone to retrieve the current data from the base station.
Manual date and time setting
In situations where automatic synchronization is not possible or is not working properly, you have to manually set the parameters. SIM-maps or areas with unstable network coverage.
To switch to manual mode, you need to go to the Settings menu → Additional → Date and time to turn off the “Use Network Time” switchboard. Once you do this, the input fields will become active. You can now choose the year, month, day, and hour and minutes for yourself.
- 📅 Click on the date field to open the calendar and select the current day.
- ⏰ Use a drum mechanism or digital input to set the exact time.
- 🌍 In the Time Zone section, select your city or region from the list if the automation didn’t work.
- 🔄 The time format can be switched to 12- or 24-hour, depending on personal preferences.
After making changes, be sure to click the Save button or simply go back a step to allow the system to apply the new values. Note that in manual mode, synchronization with Internet servers will not occur until you turn on the corresponding switch again.
☑️ Checking manual settings
Problems with time zone and geolocation
One of the most common reasons for the wrong time on Xiaomi Mi 9 is a time zone error: the smartphone may be in Moscow, but think it is in Vladivostok, if the geolocation services transmitted the wrong coordinates or the operator is broadcasting data from a neighboring region.
To fix this situation, you don't have to turn off automatic synchronization completely. You just go to the time settings and find the Time Zone. If it's set incorrectly, just select the right city from the list. The system instantly recalculates the current time for the new shift relative to the GMT.
⚠️ Attention: If you are using VPN-Some applications to bypass locks can virtually move the device to another country, which forces it to be MIUI time-zone.
It’s also worth checking your geolocation settings. Go to Settings → Privacy → Access to Location and make sure location services are active. Without access to GPS or Wi-Fi, your phone won’t be able to pinpoint your region for proper belt installation.
In some cases, cleaning the cache of Google Play’s system services, which are responsible for syncing, helps, especially if the problem occurs after a major operating system update or a new security patch is installed.
Setting up the time and language format
The appearance of displaying time on the lock screen and in the status bar depends on the selected regional settings. Xiaomi Mi 9 allows you to flexibly adjust these settings, adapting the interface to the user's habits.
The date and time menu has a choice of formats: 12-hour (with the designation AM/PM) or 24-hour. For Russian-speaking users, the second option is usually more familiar, and changing this setting immediately reflected in all system applications, including the alarm clock and calendar.
The format of the date may also vary, depending on the language of the system, the order of the day, month and year will vary, for example, in American English the date will be written as MM/DD/GYYYYYYYY, whereas in Russian it will be DD.MM.GYYYYYYYYYYYYYY.
| Parameter | Description | Where to change |
|---|---|---|
| Time format | 12 hours or 24 hours | Settings → Date and time |
| First day of the week | Monday or Sunday | Settings → Calendar |
| Language of the system | Affects the order of the date | Settings → Advanced → Language and input |
| Second mapping | Switching on/off | Settings → Lock screen |
Hidden format settings
Remember that changing the language of the system can affect not only the date, but also the voice assistant and keyboard layout. Therefore, you should make changes to the language settings consciously, understanding the consequences for the entire interface.
Synchronization through Google and third-party apps
For maximum accuracy, it is recommended to use sync through a Google account, which ensures not only the right time, but also the preservation of calendar and contacts history. On the Xiaomi Mi 9, this feature is integrated deep into the system.
Check if time syncing is active in your Google account settings. Go to Settings → Accounts and Sync → Google. Make sure the slider opposite Time or in the general sync settings is active. This ensures that even when you reset your phone settings, the time will be restored correctly after you log in.
There are also third-party apps from the Play Market, such as "Clock Sync" or "Time & Date," which can be useful if Android's system mechanisms are unstable, and such applications often have rights to more frequent atomic time checks.
- 📲 Install a proven application to synchronize time.
- 🔐 Provide the necessary permissions to change system settings.
- ⚙️ Set up an automatic check interval (e.g., once every 24 hours).
- ✅ Use desktop widgets to visually control accuracy.
However, it’s worth remembering that installing third-party apps for basic features isn’t always justified: They can consume extra battery power and run in the background, which for the Xiaomi Mi 9 with its power optimization might be redundant.
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System sync via Google is preferable to third-party apps, as it is more deeply integrated into Android and less likely to cause conflicts with other services.
Solving problems: time resets after switching off
If you notice that after a full battery drain or a long shutdown, the smartphone shows the wrong date each time (for example, January 1, 2019), this indicates a more serious problem: Modern smartphones do not have a separate battery for the watch, as in older PCs, so the main battery is responsible for storing time.
Most often, the reason lies in the deep discharge of the lithium polymer battery, when the voltage drops below the critical threshold, and the power controller completely turns off the board. At this point, the memory that stores the current time is cleared, after turning on the phone does not know what time it is until it receives a signal from the network.
⚠️ Note: If time is reset even when the phone is charged after rebooting, this may indicate a motherboard malfunction or a software failure in the partition RTC (Real Time Clock).
To solve software errors, try resetting your network settings. Go to Settings → About Phone → Settings Reset → Reset Wi-Fi, mobile networks and Bluetooth. This action will not delete your personal data, but update your network configurations, which often helps to establish communication with time servers.
As a last resort, if the problem is software-based and not solved by standard methods, you may need to flash the device through your computer using the Mi Flash Tool utility. However, before that, it is recommended to contact an authorized service center, especially if the device is guaranteed.