如果您注意到您的 Windows 11/10 计算机未更新夏令时 (DST)更改，或者Windows 时间^{(Windows Time)}已自动从DST更改为正常时间^{(Normal Time)}，并且每次 PC 启动或从休眠状态唤醒时再次更改，则此帖子旨在帮助您。在这篇文章中，我们将提供适当的解决方案，您可以尝试修复此异常。

Windows 11/10^(Time)不更新夏令^(Daylight) 时^(Savings)

计算机使用日期和时间来识别文件的创建、修改或删除时间；管理电子邮件和目录系统恢复点，以及管理许多其他重要的系统相关活动。

如果您遇到此问题，可以按照以下说明解决问题。

请执行下列操作：

1. 右键单击^{(Right-click)}任务栏右端系统托盘/通知区域中显示的时间，然后单击Adjust date/time。
2. 在出现的日期和时间^{(Date & time)}窗口中，在相关设置 ^{(Related settings )}部分下，单击为不同时区添加时钟^{(Add clocks for different time zones)}链接。
3. 在弹出的窗口中单击 日期和时间选项卡。^{(Date and Time)}
4. 单击更改时区^{(Change time zone)(Change time zone)}。
5. 确保^(Make)选择了正确的时区。如果尚未选中，请勾选Automatically adjust clock for Daylight Saving Time旁边的复 选标记。
6. 单击确定^(OK)。
7. 接下来，单击 更改日期和时间^{(Change date and time)}按钮。
8. 单击^(Click)日历中的左右小箭头选择月份和年份，然后单击该月中的某一天。
9. 通过输入小时、分钟、上午或下午，或单击上下箭头按钮更改时间。
10.  当时间与当前时间匹配时，单击 确定。^(OK)

时区、日期和时间已设置！

相关^(Related)：自动调整夏令时显示为灰色^{(Adjust for daylight saving time automatically is grayed out)}。

现在，您需要定期与Internet 时间服务器^{(Internet Time Server)}同步时间。

Windows 可以自动将日期和时间与时间服务器同步，以确保显示准确的时间。

请按照以下步骤启用 Internet 时间：

注意^(Note)：如果您的计算机是域的一部分，则Internet 时间^{(Internet Time)}功能不可用。有关时钟同步信息，请联系您的系统管理员。^{(System Administrator)}

1. 右键单击^{(Right-click)}任务栏中显示的时间，然后单击Adjust date/time。
2. 在出现的日期^(Date)和时间窗口中，在相关设置 ^{(Related settings )}部分下，单击为不同时区添加时钟^{(Add clocks for different time zones)}链接。
3. 在弹出的窗口中单击 Internet 时间选项卡。^{(Internet Time)}
4. 然后，单击更改设置^{(Change settings)}。

如果系统提示您输入管理员密码或确认，请键入密码或提供确认。

• 现在，确保  选中与 Internet 时间服务器同步。^{(Synchronize with an Internet Time server)}
• 接下来，确保计算机已连接到Internet，然后单击 立即更新^{(Update Now)} 按钮。

计算机现在将连接到Internet服务器并更新计算机上的时间。

注意^(Note)：如果计算机未能从选定的Internet 时间^{(Internet Time)}服务器接收更新，则会打开一条消息，说明发生了错误。选择其他服务器并重试。

• 单击确定^(OK)。

Internet Time is now enabled on your computer!

现在应该解决这个问题。但是，如果您在 PC 从正常时间^{(Normal time)}切换到夏令时 (DST)^{(Daylight Savings Time (DST))}时仍然遇到时钟显示错误时间的问题，请确保取消选中时钟更改时通知我^{(Notify me when clock changes)}选项。

Hope this helps!

相关帖子^{(Related post)}：DST 设置会导致 Windows 上的 CPU 和内存使用率过高^{(DST setting causes high CPU & memory usage on Windows)}。

Windows 11/10 does not update Daylight Savings Time (DST) change

If you notice that your Windows 11/10 computer does not update Daylight Savings Tіme (DST) change or that the Windows Time has been changed automatically from DЅT to Normal Time and changes again every time the PC starts or wake up from hibernate, then this post is intended to help you. In this post, we will provide the аppropriatе solution you can try to remediаte this anomaly.

Windows 11/10 does not update Daylight Savings Time

The computer uses the date and time to identify when files are created, modified, or deleted; to manage email messages and catalog system restoration points, and to manage many other important system-related activities.

If you’re faced with this issue, you can follow the instructions outlined below to resolve the issue.

Do the following:

1. Right-click the displayed time in the system tray/notification area on the right end of the taskbar, and then click Adjust date/time.
2. In the Date & time window that appears, under the Related settings section, click the Add clocks for different time zones link.
3. Click the Date and Time tab on the windows that pop up.
4. Click the Change time zone.
5. Make sure the correct time zone is selected. Place a checkmark next to Automatically adjust clock for Daylight Saving Time, if it is not already selected.
6. Click OK.
7. Next, click Change date and time button.
8. Click the small left and right arrows in the calendar to select a month and year, and then click a day within the month.
9. Change the time by entering the hour, minute, AM or PM, or by clicking the up-down arrow buttons.
10. Click OK when the time matches the current time.

The time zone, date, and time have been set!

Related: Adjust for daylight saving time automatically is grayed out.

Now, you’ll need to Synchronize time regularly with the Internet Time Server.

Windows can automatically synchronize the date and time with a time server to make sure the accurate time is displayed.

Follow these steps to enable Internet Time:

Note: If your computer is part of a domain, the Internet Time feature is not available. Contact your System Administrator for clock synchronization information.

1. Right-click the displayed time in the taskbar, and then click Adjust date/time.
2. In the Date & time window that appears, under the Related settings section, click the Add clocks for different time zones link.
3. Click the Internet Time tab on the window that pops up.
4. Then, click Change settings.

If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

• Now, make sure that Synchronize with an Internet Time server is checked.
• Next, make sure the computer is connected to the Internet and click the Update Now button.

The computer will now connect to an Internet server and updates the time on the computer.

Note: If the computer fails to receive an update from the selected Internet Time server, a message opens stating that an error has occurred. Select a different server and try again.

• Click OK.

Internet Time is now enabled on your computer!

The issue should now be resolved. However, if you’re still having problems with the clock showing the wrong time when the PC switches from Normal time to Daylight Savings Time (DST), make sure to uncheck the Notify me when clock changes option.

Hope this helps!

Related post: DST setting causes high CPU & memory usage on Windows.

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