24 hour clock, for client, or is it server ..... howto?

I have my machine in 24 hour clock. Chats inside Spark 2.5.8 on OS X (Leopard) using openFire 3.5.0 Ent Ed server to another (internal user) user also using Spark, shows the timestamps running down the left side of the trsacript in 12 hour clock (AM/PM time).

Since the USA is like the last nation on the planet to use 24 hour clock (and please please plase do not call it military time, I harbor powerful disdain for the military) this is a small issue, not huge, but growing, issue for us especially as more and more people travel more and more these days.

If a box that one could mark with a tick were added to the “Language and Time” screen in the server admin window, that’d be way kewl!

Any and all advice on how to set this is most appreciated.

Cheers.

Sjobeck