he TimeValue function returns a Variant of subtype Date that contains the time.
Syntax
TimeValue(time)

Parameter 	Description
time 	Required. A time from 0:00:00 (12:00:00 A.M.) to 23:59:59 (11:59:59 P.M.) or any expression that represents a time in that range

Example
<%

response.write(TimeValue("5:55:59 PM") & "<br />")
response.write(TimeValue(#5:55:59 PM#) & "<br />")
response.write(TimeValue("15:34"))

%>

The output of the code above will be:
5:55:59 PM
5:55:59 PM
3:34:00 PM