Convert date from iso date format to utc in mongodb query

Question

i am new in mongodb driver.i am trying to filter documents between two date from 06-08-2015 to 06-08-2015 .this is my code

IMongoQuery querySubmissionDateFrom = Query<ReviewMDO>.GTE(m => m.SubmissionData.SubmissionDate,manuscriptFilterDocument.Filter.SubmissionFromDate.Date);
     queryFilter.Add(querySubmissionDateFrom);

you can see my manuscriptFilterDocument.Filter.SubmissionFromDate.Date filed contain value "06-08-2015 00:00:00" .because in mongodb date is automatically converted to iso date formate.how can i convert this to UTC date formate for comparison.

but after add this to query list date value is converted to isodate format

Answer 1

finally i got it.i share my answer to others for reference.i changed my code like this

i use DateTime.SpecifyKind() function for convert datetime to UTC

IMongoQuery querySubmissionDateFrom = Query<ReviewMDO>.GTE(m => m.SubmissionData.SubmissionDate, DateTime.SpecifyKind(manuscriptFilterDocument.Filter.SubmissionFromDate.Date, DateTimeKind.Utc) );
            queryFilter.Add(querySubmissionDateFrom);