How to change the date and time on an Android smartphone

Incorrectly set time and date on a mobile device can cause many problems: from the inability to log into the banking application to failures in the operation of instant messengers and browsers. A synchronization error often occurs after resetting the settings, replacing the SIM card, or when roaming without automatic operator detection.

Changing these settings to Android is quite simple, however, the location of the necessary menus may differ depending on the version of the operating system and the manufacturer's shell (for example, MIUI, One UI or ColorOS). In this article, we will look in detail at all the ways to manually and automatically configure the calendar and clock, and also find out why the system can block changes.

Correctly setting the time zone is critical for correct operation. SSL certificates. If the date on your phone is behind or in a hurry even by a few days, secure connections (HTTPS) will stop working, and many sites simply won’t open.

The standard path through system settings

Most modern smartphones hide time settings in the general settings menu to avoid accidental changes user. First, you need to open the main settings menu of your device. Usually this is a gear-shaped icon located on the desktop or in the notification shade.

The next algorithm of actions depends on the manufacturer. On the “clean” Android (Pixel, Motorola) you need to find the section System, and then select the item Date and time. In shells from Samsung or Xiaomi this item is often found in the category General settings or Additional settings.

If you cannot find the section you need right away, use the built-in settings search. Simply enter the word "time" or "date" into the search bar at the top of the settings screen, and the system will redirect you to the desired menu.

⚠️ Attention: On some corporate devices or phones with security profiles installed, the administrator can prevent manual time changes. In this case, the sliders will be inactive (gray).

After entering the menu, you will see a switch "Use network time" or "Automatic time setting". It is this parameter that is responsible for synchronizing with a cellular operator or the Internet.

Manually setting the date and time

When automatic synchronization does not work correctly or you are in an area of poor signal reception, you have to resort to manual settings. To do this, you need to deactivate the automatic mode.

Find the switch Use network time and move it to position "Off". Only after this the fields for entering current values ​​will become active. The system unlocks the ability to edit hours, minutes, day, month and year.

Pay attention to the date format. It may differ in different regions: in some places the day comes first (DD.MM.YYYY), and in others the month (MM.DD.YYYY). Be careful not to confuse these values, as this may lead to confusion in the calendar.

After entering all the values, do not forget to press the OK or Savebutton, if present. In some versions Android changes are applied instantly after spinning the number selection reels.

Setting the time zone

Time zone is one of the most important settings that is often ignored. If the time is set correctly, but the zone is selected incorrectly, you will constantly be late or arrive early for meetings, and notifications will not arrive on time.

In the date and time menu, find the item Time zone. Here you can select an option "Auto-adjust time zone"that uses location data (GPS) or cellular network code to determine the region.

If the automation makes a mistake (for example, it detects a neighboring city), select option Select time zone manually. A list of all cities in the world will open. Find the capital or major city of your region (for example, Moscow, Kyiv, Almaty) and select it.

Region	Example city	UTC offset	Daylight saving time
Western Europe	London, Lisbon	UTC+0	Yes ( DST )
Central Europe	Berlin, Paris, Rome	UTC+1	Yes ( DST )
Eastern Europe	Moscow, Minsk	UTC+3	No
Central Asia	Almaty, Novosibirsk	UTC+6 / UTC+7	No
Far East	Vladivostok	UTC+10	No

The wrong time zone often causes time desynchronization when traveling. Even if you set the hands manually, the system may reset them back after a while if geolocation and automatic zone detection are enabled.

Why does the time get lost on Android

Users often wonder why after rebooting or turning off the phone, the time becomes incorrect again. Most often, the problem lies in the lack of communication with time servers or malfunctions in the communication module.

The main reason is the discharge of the internal CMOS battery or power failures of the main battery during a deep discharge. Although modern smartphones do not have a separate clock battery like a PC, if there is a complete blackout, the system timer can be reset to the factory date (often 2010 or 2015).

Another common reason is problems with the SIM card. Telecom operators transmit precise time through network signaling channels. If the SIM card is not active, damaged or the phone does not see the network, the parameter "Network time" becomes unavailable.

⚠️ Attention: If the time is constantly reset after each time the phone is turned off, this may indicate a hardware malfunction of the motherboard or a worn-out battery that does not maintain the minimum voltage when turned off condition.

Third-party applications also affect the correctness of the time. Some apps to save energy or “clean up memory” can aggressively close system synchronization processes, considering them useless.

Using applications for synchronization

If standard settings do not help, you can use specialized software from the store Google Play. There are utilities that force time synchronization via the Internet Protocol NTP (Network Time Protocol), ignoring operator data.

Popular applications such as ClockSync (for devices with root access) or various clock widgets allow you to check the time with atomic clocks. However, for a normal date change they may be redundant.

For such applications to work without root access, the use of ADB (Android Debug Bridge) is often required. This is a developer tool that allows you to give commands to your phone from your computer.

adb shell settings put global auto_time 0
adb shell settings put global auto_time_zone 0

These commands disable automatic synchronization at the system level, which sometimes helps when the menu sliders get stuck. However, use ADB requires caution and USB debugging enabled.

What is an NTP server?

NTP (Network Time Protocol) is a network protocol for synchronizing clocks on computer networks. It allows you to receive ultra-precise time from specialized servers linked to atomic clocks, which eliminates operator errors.

The impact of an incorrect date on the operation of applications

Many do not realize how critical the correct date is for the digital world. Security protocols rely on timestamps. If your phone thinks it's 2018, but the site's certificate was issued in 2023, the browser will consider the connection insecure.

• 🌐 Browsers: Gives an error ERR_CERT_DATE_INVALID and block access to sites, including search engines and social networks.
• 💳 Banking applications: They refuse to start or do not skip payments, since security tokens have a short lifespan.
• 📧 Mail and instant messengers: Messages may not arrive or are sent with the wrong date, which breaks the correspondence history.
• 🎮 Online games: Cannot connect to the authorization server, requiring the current time to check subscriptions and in-game events.

Two-factor authentication applications (Google Authenticator, Microsoft Authenticator) are especially sensitive to date. The codes in them are generated based on the current time. A difference of even 30 seconds will invalidate the code and you will not be able to log into your account.

⚠️ Attention: Before setting the date, make sure the year is set correctly. An error in the year (for example, 2026 instead of 2026) is the most common reason why HTTPS connections are blocked.

Critical important: If you reset your phone to factory settings, always check the date immediately after the initial setup before installing apps and entering passwords.

Frequently asked questions (FAQ)

Why can’t I change the date manually, the slider is gray?

This means that the automatic synchronization function is enabled. Go to the date and time settings and turn off the switch "Use network time" or "Auto-setting the time". Only after this, the fields for manual input will become active.

How to change the date on the locked screen?

It is impossible to change the system date from the lock screen for security reasons. You need to unlock the device, enter a pattern or PIN code, and only then go to settings.

Is the time reset when replacing the SIM card?

Usually no, the time is stored in the phone's memory. However, if you have enabled the "Use network time" option, the phone may adjust to the time zone of the new operator. If the new operator transmits incorrect data, the time may change.

What should you do if, after changing the date, the phone writes “The time is incorrect”?

Try to restart the device. If the problem persists, check to see if you have a device administrator profile (such as corporate email) that is blocking changes. Also check the operation of the SIM card.

Does changing the date affect the operation of the alarm clock?

Yes, alarms are tied to the system time. If you set the date back, the alarm may go off again or not go off at all if the time jumps around when it rings. It is recommended to recheck the installed alarms after changing the time.