How do you query on Dates using GlideRecord?

[#1]

How do you work with Dates and Querying using GlideRecord?

If I want to get all records whose, say, created_date is earlier than DATE..how would you do it?

var gr = new GlideRecord('xyz');
gr.addQuery( 'created_date', '<', DATE );
gr.query();

???

Thanks

[#2]

This was answered in another post already GlideRecord query against glide_date_time field