Is this airport open 24/7?
My Danish is pretty rusty, but I just checked their website, and it looks like the answer is no. (Although it looks like they are using 24:00 to mean midnight. Which isn't what midnight is in military time.) Here's what they say (my translation in parentheses). Terminalbygningen er normalt åben: (The terminal is normally open:) Mandag-fredag kl. 05.30* - 24.00. (M-F, 5:30am to midnight) Lørdag kl. 03.00 - 24.00 (Sat. 3am to midnight) Søndag kl. 05.30* - 24.00 (Sun. 5:30am to midnight) Then there's a note saying that if a flight is leaving outside of normal business hours, they open up 2 hours prior to that. And then comes the kicker: "Please note that accomodation is not possible."
24.00 is indeed midnight. In the 24-hour system, midnight is usually written as 24.00 if it is an arrival time or "until"-time. Midnight is written 0.00 if it is a departure time or a "from"-time. Therefore, you will often see: Open 0.00 to 24.00 meaning open 24 hrs. Note that the Aarhus airport is located quite far from Aarhus, about 40 km or 50 minutes by bus.
@Christophe: cool! Didn't know that about 24:00 vs. 0:00! As my Da always used to say, "Count that day as lost that you do not learn something new." And I did. Thanks!
If all the hands are straight up and down - - and stay that way for a split second - - 24:00 is midnight of one day and 00:00 is the very beginning of the next day. If you want the bombs to stop falling at midnight on June 19, it's 24:00. If you want the ruckus to start early on June 20, it's 00:00. Actually, the military (US and all nations subscribing to standardized doctrine and terminology) omits the colon and uses 2400 and 0000 - - and always uses four digits so you can't miswrite and make 0008 (if written as 008) become 1008 by having a grubby pencil mark look like a '1' by accident. Thus endeth the lesson in military time.
Thank you, Ed. Love the details!