Using lastUpdated in frontmatter is invalid

[ajiho]

Describe the bug

When using lastUpdated as Date in frontmatter, even in non git environments, the input time should be displayed directly

Reproduction

NOT REQUIRED

Expected behavior

foo.md

---
lastUpdated: '2024-12-25T10:30:00Z'
---

# foo
xxxx

Even if I don't use the Git environment, it should still display the time

I have checked and found that the relevant issues have been closed, but when I tested, the time still did not display

I have also created a Vitepress test and found that if using Git, configuring it in FrontMatter can be effective in forcing override

What I mainly want to express is that if frontmatter is forced to set lastUpdated, whether it uses the Git environment or not, it should display this given time

System Info

System:
    OS: Windows 10 10.0.19044
    CPU: (8) x64 Intel(R) Core(TM) i7-4720HQ CPU @ 2.60GHz
    Memory: 1.18 GB / 7.91 GB
  Binaries:
    Node: 22.11.0 - C:\Program Files\nodejs\node.EXE      
    npm: 10.9.0 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (131.0.2903.86)
    Internet Explorer: 11.0.19041.3636

Additional context

No response

Validations

• Check if you're on the latest VitePress version.
• Follow our Code of Conduct
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.

[brc-dd]

remove the quotes, adding quotes will treat it like string not date

https://yaml.org/type/timestamp.html

[ajiho]

My fault, thank you