Conversion failed when converting date and/or time from character to string

[Motlatjo]

Hi Guys

The query below works fine in MSS Management Studio, but when i try to run this query on the report, it returns "Conversion failed when converting date and/or time from character to string"
All the date fields used here are of DateTime datatype
Please help

Thank you in advance


declare @reportFrom varchar(10),
@reportTo varchar(10),
@agentID varchar(10),
@hourFrom varchar(10),
@hourTo varchar(10),
@queue int

set @reportFrom = '2013-07-17'
set @reportTo = '2013-07-17'
set @agentID = 's1028167'
set @hourFrom = '07:00'
set @hourTo = '16:30'
set @queue = 0


declare @reportFrom varchar(10),
@reportTo varchar(10),
@agentID varchar(10),
@hourFrom varchar(10),
@hourTo varchar(10),
@queue int

set @reportFrom = '2013-07-17'
set @reportTo = '2013-07-17'
set @agentID = 'motlatjo'
set @hourFrom = '07:00'
set @hourTo = '16:30'
set @queue = 0

SELECT Date
,Agent
,Queue
,Status
,Reason
,Time
,Case When DatePart(HH, endTime) = DATEPART(HH, @hourFrom) And
DatePart(HH,Time) <> DATEPART(HH, @hourFrom) Then
DATEDIFF(MS, Convert(Varchar(10), Cast(Time As DATE), 120) + ' ' + @hourFrom + ':00.000', EndTime) END TimeSpend
,Timestamp
,TotalTime
,version
From AgentTimeDetail
Where Agent in (@AgentID)
And Date between @reportFrom and @reportTo
And Time < @reportFrom + ' ' + @hourTo + ':00.000'
And EndTime >= @reportTo + ' ' + @hourFrom + ':00.000'

Thank you