Specifically, how long did it take from start to finish once you started the process? Bonus points if you changed your name whilst living abroad!

After four years of marriage, I am tired of people assuming DH and I aren't married because we have different surnames. I don't mind keeping my own name, although DH would prefer we have the same name, but the assumption that we're not married really grates on my nerves!

Living overseas makes it extra tricky as I can't go in anywhere to fill in paperwork or show ID - not even sure it is possible to change it from overseas, but I guess I'll try! So if you changed your name, how long did it take you to get it all done?