I am in West Allis, Wisconsin, United States of America. It is considered Central Time Zone. As for what region I don't know what you mean. North America I guess. I had stopped playing for a couple of days because I was frustrated at the game not registering my kills. Then just to see what would happen I decided to do a challenge. I forgot the name of it but what the challenge was it involved staying the Enforcer for 5 minutes. During the match I made it to the Enforcer and stayed out of trouble for 5 minutes and the milestone thing flashed across the screen stating I got it and 1000 credits. After the match in the upper right of the game a box showed up. It said Reward 1000 credits. So, I knew I got it but just to make sure I checked the Timed Challenges and what do you know. The Time Challenges states that I didn't get it and I still have about 4 minutes or so left to go on the challenge.
Which brings me to today April 18th 2018. I read the Night on Endor Update Game Update and it fixes some of the Timed Challenge issues. I cannot say for certain it fixed all of them. Right now for 4 days we have Ewok challenges. The Stormtroopers can't see. I don't even know where the pick up spot is. And as an Ewok it's so hard to find a Stormtrooper. It's either a big map or a complicated one. I have to kill 25 for 1 challenge and 10 for another. It looks like I have to perform both challenges as an Ewok too. I hope they make Ewoks a regular part of the battlefront game. Like you have Droids vs Clones or Rebels vs Stormtroopers, you can have a battle with Ewoks vs Stormtroopers with Heros included. And Ewoks are like Pit bulls. They are not fat, that's all muscle. Have Ewoks have the ability to take over an AT-ST like in Return of the Jedi. Now this will be a fun game straight from the movies.
Back to the Challenges---I will wait until I get another 1 day challenge and try to complete it before I say they fixed the Timed Challenges. They need to register in real time in and out of the game.