Transact SQL :: How To Get Time Portion Only Of A Date For LINQ Query

I'm trying to translate this portion of VFP code into LINQ query:

select COUNT(ID) as conflicts
from dbo.max4sale where <<thisform.cWhere>>
AND Start_Time >= <<VFP2SQL(m.ltBegin + m.lnStartTime)>>
and Start_time <= <<VFP2SQL(m.ltEnd)>>
AND CONVERT(varchar(5),Start_Time,108) <= <<VFP2SQL(m.lcEndTime)>>
AND CONVERT(varchar(5),End_Time,108) >= <<VFP2SQL(m.lcStartTime)>>
<<m.lcDays>>

Here is my non-working attempt:

var startTime = new DateTime(1900, 1, 1, beginDateTime.Hour, beginDateTime.Minute, 0);
var endTime = new DateTime(1900, 1, 1, endDateTime.Hour, endDateTime.Minute, 0);
var daysOfWeek = dailyLimits.Where(dl => dl.Selected == true).Select(ds => ds.WeekDay).ToList();
if (daysOfWeek.Count() < 7) // not all days of the week selected

[Code] .......

First of all, I see a bug in my logic now as the first part of the query I need to do all the time and only the second part if the count < 7. But that's not my problem - I can not figure out how to make times comparison only using LINQ. Ideally I think I'd like to have cast(start_time as time) >= @p1 as a result to be executed by LINQ.

BTW, I am only getting the error in run-time that Parse can not be interpreted. So, I need to figure out another way of making LINQ recognize my intent of checking time portion of the date only.