Remind HN: Changes Your Clocks Tomorrow (If you observe DST)

I remember last year watching the clock tick from 1:59 AM to 1:00 AM during a marathon coding session. For some reason, it's way more amusing than it should be.

How does one refer to the two hours labeled as 1-2AM? Is there an official way to do it, or just "first|second 1:30AM"? Of course, you could break out the POSIX timestamps...

I keep conjuring this mental image of a Law & Order case were the murder somehow gets off clean because he abused the ambiguity.

Did we need to have the link with this?