How to set the time on Xiaomi weather station: synchronization, manual adjustment and error elimination

The exact time at Xiaomi weather station is not just convenience, but the key to the correct operation of all the functions of the device. Synchronization depends on the relevance of weather data, temperature charts, and alarms and notifications. Many users face the problem when the weather station shows the wrong time, especially after resetting settings or Internet outages. In this article, we will discuss all the ways of setting time, from automatic synchronization via Mi Home to manually entering the date and time zone.

Xiaomi weather stations (such as Mi Temperature and Humidity Monitor 2 or Xiaomi ClearGrass Smart Weather Station) are not always self-time synchronization, and are usually adjusted via the Xiaomi Gateway app or gateway. If you just purchased a device or noticed a time discrepancy, follow our instructions – they will be suitable for most models released after 2018.

In the article you will find:

• 🔄 How to enable automatic time synchronization with Mi Home and Xiaomi Gateway
• ⚙️ Step-by-step instructions for manually adjusting the date and time zone
• ⚡ Frequent errors and ways to fix them (for example, a failure after a firmware update)
• 📱 Features of settings for different models of weather stations

Why is Xiaomi weather station showing the wrong time?

Before you start setting up, it is important to understand the cause of the failure. Xiaomi weather stations receive time data in one of three ways:

1. Internet (synchronization with Mi Home servers)
2. Xiaomi Gateway (if the weather station is connected to it)
3. Manual (if automatic synchronization is disabled or unavailable)

If time has gone wrong, the most likely reasons are:

• 🌐 No Internet connection – weather station can not synchronize with servers.
• 🔌 Gateway Xiaomi Gateway is disabled or works incorrectly – some models of weather stations get time through it.
• 🔋 Battery discharge – with a low charge, the device can reset settings.

The problem may also be related to the wrong region in the Mi Home app, for example, if the settings are China and you are in Russia, the servers may be transmitting incorrect time.

Method 1: Automatic time synchronization through Mi Home

The easiest and most reliable way to do this is to set up automatic sync via an official app, which works for most models connected to the Xiaomi Gateway or directly to Wi-Fi.

Instructions:

1. Open the Mi Home app and go to the section with your weather station.
2. Slap the icon. ⚙️ Settings (usually in the upper right corner).
3. Select Time and Date or Time Synchronization (the name may vary depending on the model).
4. Activate the Automatic Synchronization switch.
5. Make sure that the Region section includes your time zone (e.g. Moscow, GMT+3).

If the time and date are not in the settings, your weather station will synchronize the time through the gateway.

• 🔄 Reboot Xiaomi Gateway (Switch off power for 10 seconds).
• 📱 Update the gateway firmware in the Mi Home app.
• 🔗 Make sure the weather station is connected to the gateway (the list of devices should have a green communication indicator on the device).

💡

If you still have a time delay after you turn on automatic synchronization, try changing the server in Mi Home. To do this, go to Profile → Settings → Region and choose Russia instead of China.

Method 2: Manual time setting (if automatic synchronization is not working)

Some models of weather stations (for example, Xiaomi MiJia Bluetooth Temperature and Humidity Sensor) do not support automatic synchronization. In this case, the time will have to be adjusted manually. However, there is a nuance: most budget Xiaomi weather stations do not have physical buttons to change the time.

If your weather station is connected to Xiaomi Gateway, follow the following steps:

Open the Mi Home app and select your weather station|

Go to Settings → Additional → Time and Date|

Turn off automatic sync |

Enter the current date and time manually |

Save the changes and restart the device-->

For models without manual tuning support (such as Mi Temperature and Humidity Monitor 2), the only way to reset the time is to update the firmware or reset the device to factory settings.

1. Open the battery cover of the weather station.
2. Remove the batteries for 10-15 minutes.
3. Install the batteries back and wait for the Mi Home to reconnect.

Features of settings for different models of Xiaomi weather stations

Not all Xiaomi weather stations are set up the same way. Below we’ve collected the key differences for popular models.

If your model is not listed in the table, check its specifications on the official Xiaomi website or in the instructions. Please note: weather stations with Wi-Fi support (for example, ClearGrass) usually synchronize time on their own, while Bluetooth models require manual adjustment or connection to a smartphone.

💡

Xiaomi weather stations running through the Xiaomi Gateway depend on the gateway time, and if the gateway time is lost, it will be incorrect on all connected devices, including the weather station.

Frequent mistakes and how to fix them

Even after you set up the weather station properly, you can get lost in time, and let's look at the typical problems and their solutions.

⚠️ If the weather station is a few hours apart, check the time zone in the Mi Home app. UTC+8 (Beijing, which is not suitable for Russia.

Problem 1: Time gets lost after a firmware update.

• 🔄 Reset the weather station (remove the batteries for 1 minute).
• 📱 Update the Mi Home app to the latest version.
• 🔧 Manually set the correct time zone in the device settings.

Problem 2: The weather station is not synchronized with the Xiaomi Gateway.

• 🔌 Check if the gateway is connected to the Internet (the indicator should be blue).
• 🔗 Make sure the weather station is within the gateway range (no more than 10 meters).
• 🔄 Reconnect the weather station to the gateway via Mi Home.

Problem 3: There is no time setting option in the app.

This means that your weather station model doesn't support manual time adjustment, and the only way out is to reset the device to factory settings or update the gateway firmware.

Additional advice on the stable operation of the weather station

To avoid future problems with time, follow these guidelines:

• 🔋 Use high-quality batteries – cheap batteries can cause failures.
• 📶 Ensure a stable connection of the gateway to the Internet – for this purpose use a wired connection (Ethernet) instead of Wi-Fi.
• 🔄 Regularly update firmware – new versions often fix synchronization errors.
• 📍 Place a weather station near the gateway – this will reduce data transmission delays.

If you use a weather station for a smart home (for example, to automate heating or watering), inaccurate time can lead to crashes in scenarios. For example, if the weather station shows morning instead of evening, the irrigation system may turn on at the wrong time. To avoid this, set up a backup time source via another gateway or smartphone.

💡

For models with Home Assistant support, you can configure time synchronization through this service. To do this, add a weather station as a device in Home Assistant and use the time component for forced synchronization.

What do you do if nothing helps?

If you've tried all the ways, but the weather station time is still getting knocked down, maybe the problem is the hardware failure.

1. Check the weather station at another gateway (if possible).
2. Contact Xiaomi support via the Mi Home app (Feedback section).
3. If the device is warranty, contact the service center.

It is also worth checking whether your weather station’s firmware is compatible with the current Mi Home version. For example, some older models (Mi Temperature and Humidity Monitor 1) may not work properly with the latest app updates, in which case a rollback to an earlier version of Mi Home (for example, 6.1.100) will help.

⚠️ If you use custom firmware (such as Aqara Hub with alternative software), time synchronization may be disrupted, in which case return the original firmware or manually adjust the time through third-party services like Home Assistant.

FAQ: Frequently Asked Questions