Incorrectly showing the time on the smartphone Xiaomi Redmi 9 can cause missed reminders, incorrect sorting of messages and even malfunctions of some applications. This problem is especially relevant after resetting, changing the battery or updating the firmware MIUI. Unlike newer models, the Redmi 9 sometimes requires manual adjustment of time parameters due to the peculiarities of the GPS module and network synchronization.
In this article, we will look at all the possible ways to adjust time, from automatic synchronization over the network to manual time zone input. Separately, we will focus on common errors (for example, when time is lost after rebooting) and hidden MIUI settings that affect the accuracy of the watch. If your Redmi 9 shows the wrong time despite all manipulations, at the end of the article you will find a checklist for diagnosing hardware problems.
Why Redmi 9 is running out of time: the main reasons
Before you start setting up, it’s important to understand why the smartphone is losing the correct time. 80% of the time the problem is not hardware defects, but software failures or incorrect settings.
- 🔄 Disabled automatic synchronization is the most common reason, especially after an update MIUI or reset to factory settings.
- 📡 Weak cellular signal – if the smartphone can’t connect to the base station to get the exact time.
- 🌍 Wrong time zone – relevant when moving or after replacement SIM-Cards of the operator from another region.
- 🔋 Failure of the module RTC (Real-Time Clock – occurs when the battery is deep or after an incorrect power outage.
- 🛠️ Custom firmware or root rights – modified software can block system synchronization services.
Fun fact: The Redmi 9 (model M2003J15SC) uses a separate time-tracking chip, the Power Management IC (PMIC), which continues to work even when the phone is turned off. If time is lost when the device is completely off, this may indicate a hardware malfunction of the chip.
Method 1: Automatically adjusting time over a network
The easiest and most recommended method is to enable automatic synchronization, in which case the smartphone will receive accurate time from Xiaomi servers or the mobile operator.
- Open the Settings app (cog icon).
- Go to the section Additional → Date and time.
- Activate the switches: 🔄 Autodetermining date and time 🌐 Time zone autodetermination
Wait 10-15 seconds – the smartphone synchronizes data.
If the time has not been updated after the automatic synchronization has been activated:
- 📶 Switch from Wi-Fi to Mobile Internet (or vice versa).
- 🔄 Reboot your smartphone.
- 📱 Make sure the correct operator is displayed in the status bar (sometimes). SIM-The map is defined as an unknown network").
☑️ Checking automatic synchronization
⚠️ Attention: On some firmware MIUI (for example, MIUI 12.5 Enhanced) Auto-Times may conflict with energy-saving modes. If time is lost after Battery Ultra Mode is activated, try disabling it or add Settings to exceptions.
Method 2: Manually set time and date
If automatic synchronization is not working or you are in an area without network coverage, you can set the time manually, and this method is also useful for testing applications that require simulating a different time period.
Instructions for manual adjustment:
- Go to Settings → Additional → Date and time.
- Turn off the switches Autodetermining Date and Time Zone Autodetermining.
- Slip on the Set a date field and select the current date in the calendar.
- Slip on the field Set the time and with the dial set the exact hours and minutes.
- For a time zone, select your region from the list (e.g. Moscow, GMT+3).
An important nuance: when manually configured, Redmi 9 will not automatically switch to winter/summer time (if relevant for your region), and some applications (for example, banking) can block access if the time on the device is very different from the server time.
What if your time zone is not on the list?
| Problem. | Possible cause | Decision |
|---|---|---|
| Time strays after reboot | PMIC malfunction or a discharged CMOS battery | Replace the battery or calibrate it using Engineer Mode |
| Incorrect time zone with Wi-Fi enabled | Conflict between operator data and Google servers | Turn off Wi-Fi for 1 minute, then turn it back on |
| Dates in messages are displayed incorrectly | Application cache failure Messages | Clear the cache through Settings → Applications → Messages → Storage |
| Time in the status line is not updated | System process freeze android.systemui | Restart your phone or reset System UI settings via ADB |
Method 3: Time synchronization via Google (for GMS firmware)
If your Redmi 9 runs on global firmware with Google services, you can use an alternative method of syncing through your Google account, which is useful when the operator’s network time is not available but you have access to the Internet.
Step-by-step:
- Open Settings → Accounts and Sync → Google.
- Make sure your account is connected and sync is enabled.
- Return to Date and Time and activate Date and Time Auto-Determination.
- If the time is not updated, turn off and turn on sync of your Google account again.
Important: on Chinese firmware without GMS (for example, MIUI China), this method will not work – instead of Google servers, Xiaomi’s synchronization system is used, which can cause malfunctions in some regions.
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If the time is still incorrect after syncing through Google, try to delete your Google account and add it again, sometimes resetting the time stamp cache.
Solving the problems with time lost
If the Redmi 9 time is strayed regularly, even after manually adjusting, the problem could be deeper.
- Check the battery: 🔋 If the battery is discharged to 0% and the phone is turned off, the module RTC may be thrown. 📊 Use the AccuBattery app to check battery status.
Update the firmware:
- 🔄 Go to Settings. → The phone. → Updating the system.
- 📥 If an update is available MIUI, Install it – new versions often fix bugs over time.
- Reset network settings: Settings → SIM-maps and mobile networks → Network resetting This will help if the problem is related to an operator data conflict.
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Displaying seconds in the status bar can slightly increase battery consumption (by ~0.5-1%), as the system updates the interface more often.
Frequent Mistakes and How to Avoid Them
When setting the time on Redmi 9, users often make common mistakes that lead to even more crashes.
- ❌ Set a date for the future – this can block access to certain applications (for example, Mi Pay or banking services).
- ❌ Turn off automatic synchronization without needing – manual adjustment requires regular adjustments.
- ❌ Use applications to “speed up time” (e.g. cheat games) – this can damage system files.
- ❌ Resetting settings via Fastboot without backup will result in the loss of all data, including correct timestamps.