Nope, not at all.
If you're not logged in the maths are hard now when it was only 2hrs difference before.
Had to change the forum clock this morning. Date and pm was waaaaay wrong.
I believe there are two separate issues at work here.
One issue is what time to set the server clock to and that is the time guests will see. IMHO there are two options that make sense. One is local time for where the server is located, and I think that is the most common with most servers, and the other option would be UTC. This is just a matter of choice by the site admin.
Another separate issue is that it seems the time stamp shown to logged-in users because the offset for each user is related to server clock and not to UTC as it should, so when server time is changed all users have to adjust their offsets. With this in mind it seems to me the best option is to have the server clock set permanently to UTC.