Salesforce : Converting DateTime to format YYYY-MM-DDThh:mm:ssZ

I spend lots of my time finding a solution for converting the datetime into the format (YYYY-MM-DDThh:mm:ssZ) so that it can be used in SOQL query.  SOSL query returns the datetime in format(YYYY-MM-DDThh:mm:ssZ) so for comparison one need to convert it into that format.


I hope this will save your time. 🙂