To make the Acceptable Language option (on your campaign settings) works, and you want the bot able to fake Time Zone by IP/Country. Your proxy list needs to be GEO. Using the GEO Tool will help you. Just drag your proxy list to the main windows, click GEO & Save.
The GEO tool uses the database from MaxMind. You may need to update the database manually if the tool is required!
Requirement : .Net Framework 4.5.
Your proxy list after GEO looks like this (with country code and Timezone offset at the end)
18.104.22.168:54566;;;FR;1 22.214.171.124:8080;admin;password;US;-8 126.96.36.199:8080;;;RU;3 188.8.131.52:3128;;;US;99 184.108.40.206:54566;;;IT;1
Download the GEO IP Tool here.