您可以尝试类似下面的操作，我在 Personal.xls 工作簿中找到了它（几个月前发现的）：

Sub GetiNetTime()

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'
'   The GetiNetTime macro is written by Karthikeyan T.
'
'   Please Note: Original code adjusted here for setting Indian Standard Time,
'   India Standard Time (IST) = GMT+5:30
'   Time adjusted for BST by setting  the 'Hr' variable = 1 to get GMT+1
'
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Dim ws
Dim http
Dim GMT_Time, NewNow, NewDate, NewTime, Hr, Mn ', Sc

'Below line wont work since clock providers changed the URL.
'Const GMTTime As String = "http://wwp.greenwichmeantime.com/time/scripts/clock-8/runner.php"


'Updated URL to fetch internet time ***
'Macro updated Date & Time: 27-Oct-12 1:07 PM

     Const GMTTime As String = "http://wwp.greenwichmeantime.com/time/scripts/clock-8/runner.php?tz=gmt"

On Error Resume Next
Set http = CreateObject("Microsoft.XMLHTTP")

http.Open "GET", GMTTime & Now(), False, "", ""
http.Send

GMT_Time = http.getResponseHeader("Date")
GMT_Time = Mid$(GMT_Time, 6, Len(GMT_Time) - 9)

'Set Indian Standard Time from Greenwich Mean Time.
'India Standard Time (IST) = GMT+5:30
    Hr = 1      'Hours. =1 for BST, 2 for Europe Time, 11 for Oz?
    Mn = 0     'Minutes.
    'Sc = 0     'Seconds.

NewNow = DateAdd("h", Hr, GMT_Time) 'Adding 5 Hours to GMT.
NewNow = DateAdd("n", Mn, NewNow)   'Adding 30 Minutes to GMT.
'NewNow = DateAdd("s", Sc, NewNow)  'Adding 0 Seconds to GMT.

MsgBox "Current Date & Time is:  GMT " & NewNow, vbOKOnly, "GetiNetTime"

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'
'   If you want to insert the new date & time in excel worksheet just unquote
'   the following lines,
'
'   Sheets("Sheet1").Select
'   Range("A1").Select
'   ActiveCell.Value = NewNow
'
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'Insert current date & time in cell on selected worksheet.
'Sheets("Sheet1").Select        'Select worksheet as you like
'Range("A1").Select             'Change the destination as you like
'ActiveCell.Value = NewNow

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'
'   If you want to change the system time just unquote the following lines,
'
'   Set ws = CreateObject("WScript.Shell")
'   NewDate = DateValue(NewNow)
'   NewTime = Format(TimeValue(NewNow), "hh:mm:ss")
'   ws.Run "%comspec% /c time " & NewTime, 0
'   ws.Run "%comspec% /c date " & NewDate, 0
'   Set ws = Nothing
'
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'Set ws = CreateObject("WScript.Shell")
'Split out date.
'NewDate = DateValue(NewNow)

'Split out time.
'NewTime = Format(TimeValue(NewNow), "hh:mm:ss")

'Run DOS Time command in hidden window.
'ws.Run "%comspec% /c time " & NewTime, 0

'Run DOS Date command in hidden window.
'ws.Run "%comspec% /c date " & NewDate, 0

Cleanup:
'Set ws = Nothing
Set http = Nothing

End Sub

在这种情况下，时钟提供商更改了 URL，因此您必须相应地更改代码。是否有可用的静态时钟提供商 URL，我们不需要经常更改代码？