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)%>