Internet time windows 7 server. How to synchronize time with the Internet

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A small battery is built into your computer's motherboard, allowing you to control your PC's clock even when the computer is turned off. If the battery is low, you will see error messages such as "The system CMOS checksum is incorrect - using the default configuration" when the computer starts and the date and time are reset to the default date set by the BIOS manufacturer. You can still start your computer by clicking the button to continue booting and Windows will boot as normal.

Problems start with computer usage when the times created, modified and retrieved for files and folders are confusing, emails sent and received using your email client software are marked with a much older date causing emails to move around down. all HTTPS secure sites fail to load in your web browser, test periods may expire immediately, etc. The problems start on the computer, where the times created, modified, and retrieved for files and folders are confusing, emails sent and received with your email client the software is marked as older Windows has an automatic time synchronization feature so that the time on your computer remains accurate, but unfortunately the plan is to only run it once a week.

Synchronize the clock with the Internet time server in the Internet time settings.

Automatic system clock synchronization

In the search box in the Start menu, type "Date and Time" and press Enter, this should be the Date and Time Control Panel.
In the Date and Time dialog box, click the Internet Time tab.
Click the "Change Settings" button. In the User Account Control dialog box, click the Continue button (if it appears).
In the Internet Time Settings dialog box, click the Server drop-down arrow and select a different time server. The default is time.windows.com, try time.nist.gov and see if it works for you.
Click the Update Now button to update your computer's clock and check your computer's time.
Click OK buttons to close the dialog boxes.

Configure the system to update the startup time.

To force an update, you must do the following as an administrator (or system):

SC START w32time task_started

To force an update at startup, you must run this command as an administrator. You can do this using the Task Scheduler. To do this, follow these steps as an administrator:

schtasks / CREATE / TN “Set time at startup” / SC ONSTART / RU SYSTEM / TR “SC START w32time task_started”.

Free time synchronization software

This time, you may have trouble syncing with your computer due to changes in settings or interference from third-party software, a faulty CMOS battery, or other hardware issues. If Windows does not synchronize the system time correctly, the date and time may be incorrect every time you turn on your computer, which can cause problems across multiple computers or your browser. To solve this problem, we have a large number of third party time synchronization programs that can update your system time from the Internet.

To obtain information about the exact time and perform synchronization manually, use the services of one of the so-called Daytime servers. Before connecting to such a server, make sure that you have a console Telnet client (it is found in both Linux and many versions of Windows). Run the telnet program with a parameter consisting of the server's IP address and port number, separated by a colon. The port number for the Daytime protocol is always 13. For example: telnet 198.60.73.8:13
In response, you will receive information about the time and date, after which the connection will automatically be terminated. Don't pay attention to the clock - the server is in a different time zone. You only need information about minutes and seconds. Use only those servers from the list that specifically state that they support the Daytime protocol. Never connect to the same server more than once every four seconds inclusive, otherwise your IP address will be (your requests will be considered DoS-ed).

In order for the computer with the server to clock automatically, you will have to use another protocol - NTP. All servers from the specified list support it, even those using the Daytime protocol. However, it is best to use a more accurate NTP server for this - ntp.mobatime.com. The public pool of time.windows.com servers is somewhat less accurate. Please note that the URLs of these servers are written without the usual "http://www" line. Requests to any NTP servers should also never be repeated more than once every four seconds inclusive.

To automatically synchronize your computer's internal clock with an NTP server on Linux, first install the ntp package. Then enter the command: sudo ntpdate (NTP server URL)

In order for the Windows operating system to automatically synchronize the time with the NTP server every time you turn on the computer, select the “Date and Time” item in the “Control Panel”. Switch to the " Time" tab. Check the “Enable synchronization with an Internet time server” checkbox. Enter the NTP server URL in the only field on the page.

Install the Server Time J2ME application on your mobile phone. After launching it, enter the NTP server URL in the settings. Then select “Start!” from the menu. After the request is completed, you can compare the time on the server with the time in the phone's built-in clock. You will have to perform synchronization manually, despite using the NTP protocol. This is due to the fact that the Java virtual machine on the phone does not allow applications to change the system clock.

Although a computer is a precision machine, its clock (like any other) can be slow or fast. To prevent such incidents, time synchronization using the Windows Time service is necessary.

According to a given schedule, the OS checks the clock with the server specified in the settings. If the values are not equal, the system adjusts the indicators. Initially, the configuration already contains several addresses.

How to synchronize time on a computer

For one-time synchronization, you need to do the following: Left click on the Windows clock.

The "Change date and time settings" button will open the settings window. Next, you need to go to the “Internet Time” tab. It will display the server address specified in the settings and the last date of synchronization.

By clicking on "Change settings", you can update the time.

Automation function

To synchronize your computer's time with the Internet automatically, just check the only box in the last window. If it is impossible to connect to the north or an error occurs when updating the time, then you can select one of the additional servers, fortunately the OS provides a choice of as many as 5, or find and enter it in the “server” line.

Be careful, the last selected server will remain in the default settings, the operating system will work with it and will automatically synchronize the time on the computer with the Internet.

Command Line Tools

It is not always convenient to use graphical system configuration tools. For example, if the window is overloaded with text: the eyes try to find the right button, but everything merges into one monotonous image. And entering a couple of commands is faster than frequently moving the mouse cursor from one corner of the window to another.

To synchronize the time on your computer with the Internet using the command line, open the Start menu and select Run, or simply press Win + R on your keyboard. In the line of the window that opens, write cmd, and then press Enter. This will take you to the command line, the following command will update the time on the local computer with the server installed by default:

w32tm/resync.

To configure the server that the system will use to synchronize the time on the local computer with the Internet, run the commands:

w32tm /config /manualpeerlist:[server for synchronization] /syncfromflags:manual /reliable:yes (this command sets the server whose time will be used for updates);
w32tm /config /update (message to the time service that the settings have changed);
net stop w32time && net start w32time (service restart).

- is it too difficult?

Windows is an OS whose functionality can be expanded with additional applications. If you experience difficulties setting up the time update, then you can use the simplest option - download a program that will take many steps on its own and require minimal intervention. Moreover, such programs allow you to synchronize time with greater accuracy than standard system tools. Often they can take into account delays in receiving and sending packets and obtain server addresses from lists on the Internet.

Undocumented settings

By default, the period with which Windows, after setting it up, will synchronize the time on the computer with the Internet is a week. Sometimes this interval needs to be reduced, but the built-in tools do not allow the necessary configuration. The registry will help.

To launch the registry, type regedit in the Run window and press Enter. Go to the HKEYLM branch, in it you need to expand the SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient directory. Find the SpecialPollInterval parameter. It will already contain the value 604800. It is in this number of seconds that one week passes. If you change this number to 3600, the synchronization time will be one hour.

It is not recommended to enter values less than an hour and more than a day in this column. Small values will significantly increase Internet traffic. In addition, if you try to synchronize the time every few seconds, the server will block your IP. Larger values will not achieve maximum system clock accuracy. After making the changes, enter the characters net stop w32time && net start w32time into the command line.

The local network

If you have several computers at home or in an office connected via a local network, you can use one as an accurate time server. Synchronization with the time of a PC connected to a local network is carried out in the same way as with servers on the Internet. But first you will have to run an NTP server on the computer, whose time will be used by other network participants.

To do this, open the registry and edit the HKLM\System\CurrentControlSet\services\W32Time\TimeProviders\NtpServer section. In it, the Enabled key needs to be set to 1, then restart the Windows time service from the command line by typing net stop w32time, and after execution - net start w32time.

Remember that the PC is now used by other network users as a reference, do not forget to check its performance from time to time. You can check whether the server is turned on with the w32tm /query /configuration command. An Enabled value of 1 indicates that everything is fine with the server.

Don’t forget to synchronize the time on your computer with the Internet, because now if the clock runs ahead or is too behind on it, this will affect all users.

You may have noticed that the Windows 7 operating system can independently, without your intervention, change the time (clock). This is especially true when there is a transition from winter time to summer time, and vice versa. This process is called time synchronization.

The operating system receives data from the servers. They, in turn, transmit data to your computer and if they do not agree, then the time is automatically adjusted. But there are situations when this synchronization does not occur, or occurs but the time on the clock is not set correctly. We will learn how to fix this problem right now.

First, we need to find out what types of time synchronization servers there are. So that you don’t have to look for them for a long time, I will post a list of available Russian and Ukrainian servers:
For Russia:
timeserver.ru
ntp.mobatime.ru
ntp1.stratum2.ru
ntp2.stratum2.ru
ntp3.stratum2.ru
ntp4.stratum2.ru
For Ukraine:
time.in.ua

Now let's move directly to setting up time synchronization in Windows 7. To do this, right-click on the clock, which is located in the lower right corner of your screen (on the taskbar).

Next, click " Changing date and time settings".

The "Date and Time" window will open, in which you will see three tabs: " date and time", "Additional hours" And " Internet time"The last tab is exactly what we need. Click on it. In it you will learn that your computer is synchronized with the server" time.windows.com"Accordingly, if your watch does not show the correct time, then you need to change the server - click on the button" Change settings".

The dialog box " Setting the time via the Internet". In it you will see a line in which you can enter any time server other than the one installed by default. Copy the address of any time synchronization server that is listed at the beginning of this article and paste it into this line " Server ". And then click " Update now".

After a few seconds, the synchronization process will complete and the time on your computer will change. Then simply click "OK" and close the "Date and Time" window.

The Windows clock is located in the lower right corner of the screen on the taskbar next to the “ ” button, the language bar, and other elements and opens by pressing the left button on them. In order for the system clock to show accurately, it is necessary.

Synchronization occurs with the Internet server and your PC's time is automatically updated. By default, updates occur every 7 days while the Internet is connected. In the article we will look at how to enable synchronization, how to speed up time updating with the server, and what program you can use.

How to enable and configure time synchronization on Windows 7, 8

Note: Internet time synchronization is enabled by default in Windows.

To get started, you will need to select small or large icons in the viewing area. Next in the list, click “date and time”.

This will open the date and time options. You can also call them by left-clicking in the date and time display area and select the corresponding link (shown in the screenshot).

In the window, go to the “Internet time” section; here you can see information about the current synchronization with the name of the server (if it is enabled). By default, Internet synchronization is performed with a Microsoft server called time.windows.com. To change settings, click “change settings” and “yes” (if User Account Control is enabled).

In the Internet time settings, the option “ synchronize with time server" Select one of the pre-installed servers or define your own (the list of servers can be found here http://support.microsoft.com/ru-ru/kb/262680). Next, click “update now” to synchronize the time on your computer with the Internet. If synchronization is successful, you will see a notification in the same window.

To synchronize time via the Internet, you can use various utilities such as:

Atomic Clock Sync
NetTime
SP TimeSync
Other

All aspects of synchronization are configured through the programs, and the update request interval is reduced. Using standard methods, you can also synchronize the time on your computer with the Internet more quickly and more often; read on to find out how to do this.

How to reduce the time update interval from the Internet

There may be a situation where the time is constantly lost due to problems with the system clock, even if you have time synchronization enabled on your computer. The solution to the problem is to edit the NTP client to speed up the update period. Depending on the OS version you will need:

In the registry, go to the NtpClient section (the full path is shown in the picture below). On the right side of the editor, double-click the SpecialPollInterval parameter. Next, in the number system area, select "decimal" and the value field will contain the number 604800, which represents 7 days in seconds.

For example, if you want to synchronize the time on your computer with the Internet every day, then enter the value 86400, which is calculated using the formula 60 seconds * 60 minutes * 24 hours * 1 day. Set your number of seconds and click OK.

Note: Do not set the value less than 14400 seconds (4 hours), otherwise your computer's IP address may be blocked by the time server.

You can also speed up syncing manually, but getting to the "update now" button is a lot of steps. In this case, you can use cmd. To do this, you need to , 8 as administrator, and then enter the command below and press enter.

Note: the command will work if time synchronization via the Internet is enabled.

To speed up the process further, copy the synchronization command into it. Next, place the file on your desktop or pin it to the taskbar and run it as administrator.

Preventing problems during synchronization

It is not always possible to set the exact time through synchronization with the Internet. You may encounter the following problems and solutions:

Make sure that the time zone, date and time are manually set correctly on your computer, otherwise you will have trouble trying to synchronize your computer clock with an Internet time server.
Windows gets its initial time from the BIOS, so make sure the time and date are set correctly in the CMOS BIOS.
Check the CMOS battery on the motherboard. If it is weak, then your clock may run slower, losing or resetting time. If so, then you simply need to replace the CMOS battery.
If your computer does not keep accurate time even after enabling synchronization and changing time servers, read above about changing the update interval.

As you can see, synchronize time on your computer with the Internet in Windows 7, 8 for accurate display is not difficult. Everything can be done using standard Windows steps. The programs will only reduce the cost of your time, for example, they will reduce the synchronization time in two clicks.