代码：

' ============================================
' 格式化时间(显示)
' 参数：n_Flag
' 1:"yyyy-mm-dd hh:mm:ss"
' 2:"yyyy-mm-dd"
' 3:"hh:mm:ss"
' 4:"yyyy年mm月dd日"
' 5:"yyyymmdd"
' 6:"yyyymmddhhmmss"
' 7:"yyyy-mm-ddThh:mm:ss+00:00"
' ============================================
Function Format_Time(s_Time, n_Flag)
    Dim y
    Dim m
    Dim d
    Dim h
    Dim mi
    Dim s
    Format_Time = ""
    If IsDate(s_Time) = False Then Exit Function
    y           = CStr(Year(s_Time))
    m           = CStr(Month(s_Time))
    If Len(m) = 1 Then m = "0" & m
    d           = CStr(Day(s_Time))
    If Len(d) = 1 Then d = "0" & d
    h           = CStr(Hour(s_Time))
    If Len(h) = 1 Then h = "0" & h
    mi          = CStr(Minute(s_Time))
    If Len(mi) = 1 Then mi = "0" & mi
    s           = CStr(Second(s_Time))
    If Len(s) = 1 Then s = "0" & s

    Select Case n_Flag
        Case 1
            ' yyyy-mm-dd hh:mm:ss
            Format_Time = y & "-" & m & "-" & d & " " & h & ":" & mi & ":" & s
        Case 2
            ' yyyy-mm-dd
            Format_Time = y & "-" & m & "-" & d
        Case 3
            ' hh:mm:ss
            Format_Time = h & ":" & mi & ":" & s
        Case 4
            ' yyyy年mm月dd日
            Format_Time = y & "年" & m & "月" & d & "日"
        Case 5
            ' yyyymmdd
            Format_Time = y & m & d
        Case 6
            'yyyymmddhhmmss
            format_time = y & m & d & h & mi & s
        Case 7
            ' 2021-03-04T04:54:03+00:00
            Format_Time = y & "-" & m & "-" & d & "T" & h & ":" & mi & ":" & s & "+00:00"
    End Select

End Function

使用方法：

<%=Format_Time(now(),2)%>