How to synchronize watches on iPhone and Android: 5 working methods

The time difference between iPhone and Androidsmartphone is a problem faced by many users of ecosystems Apple and Google. Even a moment's mismatch can cause confusion in messages, missed calls or reminders. But why does this happen? The fact is that the devices use different synchronization servers: iOS relies on time.apple.com, and Android relies on time.google.com or NTP servers of the operator. Added to this are UTC zones, daylight saving time and manual settings, which users sometimes change by mistake.

In this article we will examine 5 proven methods time synchronization between devices - from standard functions to third-party applications. You will learn how to make the clocks on iPhone 15 and Samsung Galaxy S24 show the same time, even if they are in different time zones. And also - what hidden settings in Android 14 and iOS 17 affect the accuracy of the watch and how to configure it correctly.

Spoiler: the most reliable method does not require installing additional apps, but less than 20% of users know about it. In order not to miss important details, read the article to the end - in the last section we have collected answers to common questions that arise during synchronization.

1. Synchronization via Google account (for Android and iPhone)

If your iPhone is installed Google account (for example, for Gmail or YouTube), you can use it to synchronize time with Android-device. This method works thanks to the function Automatic date and timethat is tied to servers Google.

Here's how to set it up:

1. On Android: go to Settings → System → Date and time and enable options Automatic date and time + Automatic time zone.
2. On iPhone: open Settings → [Your name] → Passwords and accounts, select Google and make sure data synchronization is enabled. Then go back to Settings → General → Date and time and activate Automatic.

⚠️ Attention: if mobile data or Wi-Fi is turned off, the time may be lost. In this case, the device will use the last synchronization with servers iPhone mobile data or Wi-Fi is turned off, the time may be lost. In this case, the device will use the last synchronization with the servers Appleand not Google.

• ✅ Pros: no need to install additional applications, works on most devices.
• ❌ Cons: with weak Internet, delays of up to 5-10 minutes are possible.
• ⚙️ Feature: on some firmware Xiaomi or Huawei You may need to manually select an NTP server (Settings → Advanced → Date and time → Select time server).

2. Using Apple ID and iCloud (for owners of several Apple devices)

If you have MacBook, iPad or Apple Watch, you can synchronize time via iCloudThis method will indirectly help with Android: if. your iPhone shows the correct time, it can be used as a reference for manual adjustment on Android.

Instructions:

1. On iPhone check that synchronization with iCloud: Settings → [Your name] → iCloud → iCloud Settings is enabled (turn on Date and time synchronization, if there is such an item).
2. Make sure that on all devices Apple the same time zone is selected: Settings → General → Date and time → Time zone.
3. On Android manually set the time to match iPhone (if automatic synchronization does not work).

⚠️ Attention: Starting from iOS 16, Apple removed the separate time synchronization switch in iCloud. Now this function works automatically when iCloud Drive.

Device is turned on. data-i="113">Path to time settings	Path to time settings	Recommended NTP server
iPhone (iOS 17)	Settings → General → Date and time	time.apple.com (default)
Samsung (One UI 6)	Settings → Device maintenance → Date and time	time.google.com or pool.ntp.org
Xiaomi (MIUI 14)	Settings → Advanced → Date and time	ntp.aliyun.com (for China)
Google Pixel (Android 14)	Settings → System → Date and time	time1.google.com

3. Third-party applications for time synchronization

If standard methods do not help, you can use specialized applications. They are suitable for cases when:

• 📱 You do not have an account Google or Apple ID.
• ⏱️ The time on devices differs by more than 1 minute.
• 🌍 You often travel and need the exact time for different clocks zones.

Top 3 applications for synchronization:

• 🔹 ClockSync (Android/iOS) - synchronizes time with atomic clocks via GPS or the Internet. Supports manual selection of NTP servers.
• 🔹 Network Time Protocol (NTP) (Android) - allows you to manually specify a time server (for example, time.windows.com for PC compatibility).
• 🔹 Atomic Clock (iOS) - uses radio clock signals for maximum accuracy (does not work in all countries).

Setting example ClockSync:

1. Install the application on both devices.
2. On Android select a server pool.ntp.org.
3. On iPhone in the application settings, enable Background Sync (synchronization in the background mode).
4. Start synchronization on both devices at the same time.

Install the same application on both devices|Connect both devices to the same Wi-Fi network|Disable power saving mode|Check that GPS is turned on on the devices (for accuracy)-->

⚠️ Attention: Some applications (for example, Atomic Clock) require access to location and Internet in the background. On iPhone This may reduce battery life by 5-10%.

4. Manual synchronization via SMS or email

If automatic methods do not work (for example, due to lack of Internet), you can synchronize the time manually. This method is suitable for one-time cases when you need to quickly check your watches.

Instructions:

1. On iPhone open the application Clock and remember the current time (or take a screenshot).
2. Send an SMS or letter to Androiddevice with the exact time (for example: "It's 14:27:42 Moscow time").
3. On Android go to Settings → System → Date and time and manually set the received time.
4. Disable automatic synchronization so that the time does not get lost.

This method is convenient in on trips where there is no stable Internet, but there is a mobile connection. For example, if you are flying on an airplane and need to synchronize the time with a fellow traveler on Android.

How to check the accuracy of manual synchronization?

Compare the time on both devices with an official source, for example, the website time.is (opens in the browser). exceed 0.5 seconds. If the discrepancy is greater, repeat the synchronization.

5. Synchronization via Bluetooth or Wi-Fi Direct

This method works, for example, between Bluetooth or Wi-Fi Direct. This method works, for example, between iPhone and Android-clocks (Galaxy Watch, Huawei Watch).

How to do it:

1. Turn on Bluetooth on both devices.
2. On Android go to Settings → Connected devices → Bluetooth settings and find the option Synchronization time (not available on all firmware).
3. On iPhone connect to Androidthe device as an accessory (for example, through Settings → Bluetooth → [Device name]).
4. In some cases you will need to confirm the transfer of data about time.

⚠️ Attention: this method does not work on all devices. For example, iPhone does not support time transfer via Bluetooth to Androidsmartphones, but can synchronize with Androidwatches (if they are connected as accessory).

• 📌 Compatible devices: Samsung Galaxy Watch 6, Huawei Watch GT 4, Amazfit GTR 4.
• ❌ Incompatible: most smartphones Xiaomi, Oppo, Realme.

6. Problems and solutions: why does the time diverge?

Even after configuration, the time on devices may diverge. Here are the main reasons and ways to eliminate them:

Problem	Cause	Solution
Time on iPhone lags by 1-2 minutes	Servers Apple use their own correction algorithms	Turn on Settings → General → Date and time → Set automatically and restart the device
On Android time gets lost after reboot	NTP client failure or power saving mode	Install the application ClockSync and disable battery optimization for it
Different times in the same time zone	Devices use different NTP sources	On Android manually specify the server time.apple.comon iPhone — time.google.com (required jailbreak)
Time gets lost when traveling	Automatic time zone detection does not work correctly	Disable Automatic time zone and select it manually

If none of the methods helped, check:

• 🔋 Is the battery low (when the charge is low, devices can save resources, including time synchronization).
• 📶 Is there a stable Internet connection (even if mobile data is turned on, some operators block NTP requests).
• 🔄 Are beta firmware versions installed on the devices (they often contain bugs related to time servers).

FAQ: Frequently asked questions about time synchronization

Is it possible to synchronize time between iPhone and Android without the Internet?

Yes, but only manually. For example, you can check the time using a stopwatch or send an SMS with the exact time (as described in section 4). Automatic synchronization without the Internet is not possible, since both devices rely on external NTP servers.

Why is the time more accurate on the iPhone than on Android?

Apple uses its own time servers (time.apple.com), which are updated more often than standard NTP servers on Android. In addition, iOS has more aggressive time correction algorithms that take into account network delays. On Android accuracy depends on the firmware: for example, Google Pixel synchronizes more accurately than budget smartphones on MediaTek.

Will the time get lost if I often switch between time zones?

If the option is enabled Automatic time zone, devices must adjust the time independently. However, sometimes there are delays (up to 10–15 minutes). To avoid problems:

• Before traveling, manually select the destination time zone.
• Disable the mode On the plane only after landing (the device cannot update the time during the flight).
• Use apps like ClockSync to force synchronization.

Is it possible to force the iPhone to use Google servers for time?

Officially - no. iOS is strictly tied to servers Apple. However, on devices with jailbreak you can change the NTP server through tweaks like NTPFix (at your own peril and risk!). On Android you can freely select any server in the settings.

Why is the time lost by several hours after resetting the settings on Android?

When resetting, the device may lose connection with NTP servers or incorrectly determine the time zone. To fix:

1. Go to Settings → System → Date and time.
2. Disable and enable again Automatic date and time.
3. If the problem persists, select time zone manually.

On some firmware (for example, ColorOS on Oppo/Realmeafter resetting, you need to re-authorize your account Google to restore synchronization.