Just a consideration…
Glowforge is a west coast, US-based company that does business globally. When it sends an e-mail that says “expires at midnight” on 28-Feb, you might want to specify a timezone. Also, do you mean 00:00 on 28-Feb? Or 23:59 on the 27-Feb? Or 23:59 on the 28-Feb? Or 00:00 on 01-Mar? I’m guessing you mean the order must be placed by 23:59 PST on 28-Feb.
Just food for thought! 
Midnight in Seattle? (Pacific Time?)
Could be. Who would know? 
Then that would mean you have to order on the 27th and if you ordered after 00:00 on the 28th you miss out. Which could be the case. I really don’t know. Gosh Glowforge really seems to hate standard units of measure.
Fantastic band name.
I read it and immediately thought it was a great name for a coffee brand. 
(Decaf of course.)
I was thinking a nice daaaark roast
Midnight in Seattle: the band that plays only in coffee shops…
Really good point @Tom_A and your guess is correct. I will pass it on!