how to convert datetime format(dd/mm/yyyy hh:mm:ss to yyyy-mm-dd hh:mm:ss.000)

Question

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Hi i want to convert dd/mm/yyyy hh:mm:ss to yyyy-mm-dd hh:mm:ss.000

i am using this-

convert(datetime,'dd/mm/yyyy hh:mm:ss')

&

convert(varchar(24),'dd/mm/yyyy hh:mm:ss',121)

both gives me that error-
The conversion of a char data type to a datetime data type resulted in an out-of-range datetime value.

C#

string totalDateStart = txtStartDate.Text.Trim() + " " + txtSHr.Text.Trim() + ":" + txtSMin.Text.Trim() + ":00" + " " + ddlAM1.SelectedValue; 
DateTime StrDate = Convert.ToDateTime(totalDateStart);

i want to check whether the same time in time is entered or not. i am using this code-

i get startdate. user insert in dd/mm/yyyy hh:mm:ss format. and in database i use startdate as datetime format so it automatically take yyyy-mm-dd hh:mm:ss.000 format.

Thanks

Posted 13-Mar-12 20:11pm

mayankshrivastava

Updated 14-Mar-12 19:56pm

v2

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Comments

Ajith The Great 14-Mar-12 2:27am

Hi ,

It Would Be Better if You Convert it in C# Code instead of Sql Query.

mayankshrivastava 14-Mar-12 2:47am

Ok,any suggestion how to convert it in c# code ?

2 solutions

Solution 1

Use this:

SQL

SELECT CONVERT(VARCHAR(23), GETDATE(), 121)

Posted 13-Mar-12 20:22pm

Prasad_Kulkarni

Comments

mayankshrivastava 14-Mar-12 2:24am

same error...

Prasad_Kulkarni 14-Mar-12 3:22am

mate, can u post code so i can get what exactly prob is

uttam2010 14-Mar-12 3:17am

create a function ,return varchar with same code & use it in your select query
this is help you.

SELECT CONVERT(VARCHAR(23), GETDATE(), 121)

mayankshrivastava 15-Mar-12 1:54am

i want to check whether the same time in time is entered or not.
i am using this code-
string totalDateStart = txtStartDate.Text.Trim() + " " + txtSHr.Text.Trim() + ":" + txtSMin.Text.Trim() + ":00" + " " + ddlAM1.SelectedValue;
DateTime StrDate = Convert.ToDateTime(totalDateStart);

i get startdate.
user insert in dd/mm/yyyy hh:mm:ss format.
and in database i use startdate as datetime format so it automatically take
yyyy-mm-dd hh:mm:ss.000 format.

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Saral S Stalin · Accepted Answer · 2012-03-14T20:57:00

Try the below query. It converts a string in dd/mm/yyyy hh:mm:ss format to yyyy-mm-dd hh:mm:ss.000

SQL

DECLARE @DatetimeString VARCHAR(25) = '23/10/2016  10:12:12.000'

SELECT CONVERT(VARCHAR(24), CONVERT(DATETIME, @DatetimeString, 103), 121) Date

You get the result as

SQL

Date
------------------------
2016-10-23 10:12:12.000

But still I am not very convinced in the way in which you are comparing the dates. Dates should be compared after converting both to datetime.