In aggregation builder, a date displayed in the "original" document sample is displayed differently than in the results of a stage.  It appears, dates displayed in the stage results panel are adjusted by the users TZ where the date in the "original" document is not.

Both should be displayed consistently.  Ideally, I believe there should be an option to toggle whether to display dates according to the current TZ or the "raw" date in the document.

The mongo shell displays consistently, BTW, according to the user's TZ setting.

Please see attached screen shot.  There is only 1 document in the collection being shown