在今天的帖子中，我们将找出原因，然后提供可能的解决方案，以解决为什么BIOS中日历日期的更改没有反映在 Windows 10 中。BIOS（基本输入输出系统）是个人计算机微处理器用来获取的程序计算机系统在您开机后启动。它还管理计算机操作系统与附加设备（如硬盘、视频适配器、键盘、鼠标和打印机）之间的数据流。

BIOS是计算机不可分割的一部分，是可擦除可编程只读存储器^{(Erasable Programmable Read-only Memory)}( EPROM ) 芯片上的微处理器可访问的程序。当您打开计算机时，微处理器将控制权交给BIOS程序，该程序始终位于EPROM上的同一位置。

当BIOS启动（启动）您的计算机时，它首先确定所有附件是否已就位且可操作，然后将操作系统（或其关键部分）从您的硬盘加载到计算机的随机存取存储器 ( RAM ) 中磁盘或软盘驱动器。

不反映在BIOS中更改日历^(Calendar)日期

您将根据以下场景遇到此问题：

• 在计算机BIOS中，您将日历日期更改为早于 Windows 显示的日期的值。
• 保存更改，然后重新启动 Windows。

在这种情况下，Windows日期设置不会反映您对BIOS中的日历日期所做的更改。

根据Microsoft的说法，这种行为是设计使然。Windows认为时间不会倒退。此外，如果电池出现故障或没电，笔记本电脑或笔记本设备上的BIOS可能会报告早于Windows日期的日期。^(Windows)在这种情况下，BIOS日期和时间不可靠。

此外，如果新日期晚于 Windows 报告的日期，此行为不会影响对BIOS中日历日期的更改。^(BIOS)

要解决此问题，如果您必须更改计算机上的日历日期，请使用Windows 设置^{(Windows Settings)}进行更改，而不是更改BIOS中的日期。此更改将反映在多次重新启动中。

Hope you find the information in this post useful!

Changing the Calendar date in BIOS does not work

In today’s post, we will identify the causе and then provide the possiblе resolυtion to the issue of why changes to calendar date in BIOS are not reflected in Windows 10. BIOS (Basic Input Output system) is the program a personal computer’s microprocessor uses to get the computer system started after you turn it on. It also manages data flow between the computer’s operating system and attached devices such as the hard disk, video adapter, keyboard, mouse and printer.

BIOS is an integral part of your computer and is a program that is made accessible to the microprocessor on an Erasable Programmable Read-only Memory (EPROM) chip. When you turn on your computer, the microprocessor passes control to the BIOS program, which is always located at the same place on EPROM.

When BIOS boots up (starts up) your computer, it first determines whether all of the attachments are in place and operational and then it loads the operating system (or key parts of it) into your computer’s random access memory (RAM) from your hard disk or diskette drive.

Changing the Calendar date in BIOS is not reflected

You’ll encounter this issue based on the following scenario:

• In the computer BIOS, you change the calendar date to a value that is earlier than the date that Windows shows.
• You save the change, and you restart Windows.

In this scenario, the Windows date setting does not reflect the change that you made to the calendar date in the BIOS.

According to Microsoft, this behavior is by design. Windows considers the fact that time does not travel backward. Also, the BIOS on a laptop or notebook device may report a date that is earlier than the Windows date if the battery is failing or dead. In such cases, the BIOS date and time are not reliable.

Additionally, this behavior does not affect changes to the calendar date in the BIOS if the new date is later than the date that Windows reports.

To resolve this issue, if you have to change the calendar date on your computer, use the Windows Settings to make the change instead of changing the date in the BIOS. This change will be reflected across multiple restarts.

Hope you find the information in this post useful!

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