How to update a datetime field with timezone in postgresql

Question

As the question states i tried

UPDATE mytable set end_date="2015-07-17 22:00:00+00" WHERE id=8244;

But this does not work for obvious reasons, all the detail on the web is about searching for dates not updating them, especially when they have timezones

Answer 1

UPDATE mytable set end_date='2015-07-17 22:00:00+00' WHERE id=8244;