I am trying to set the deadline on a goal to 9:00AM. When I do I get the not very friendly error message ‘alertstart: [“must start before the deadline”]’.
Additionally, I think there’s a bug in your time zone handling code. When I try to set the goal to 10AM it works. It is currently 9:30 (and I created the goal since 9). Given that we are currently in that lovely period where the UK and the US have a different DST, I suspect Beeminder is confused about what timezone I am. My timezone says GMT (London), which is correct (though will shortly become incorrect because the correct display would be BST London).