Can my Xbox achievement completion time be changed?

Hello!

Xbox 360 achievements obtained while offline will not show the time when they were completed. There is not a way to update or change the date and time.

All solution 1 to 5 for Xbox One Achievement and Challenge issues have been implemented but no change.

Sword and Soul Story: Xinjiang

I got all the results.
The achievement condition of has been achieved, but the achievement is not canceled and the achievement can not be completed

You can check that https://support.xbox.com/en-US/games/troubleshooting/troubleshoot-achievements-challenges

Problems with Xbox One achievements and challenges

After you complete achievements and challenges on your Xbox One, you can claim rewards and raise your gamerscore. To successfully unlock achievements and challenges, you need to make sure the following are true:

• You have completed all of the required elements to unlock the achievement.
  
  Note You may have to unlock a combination of achievements.
• Your console must be connected to Xbox Live. To complete challenges and unlock achievements, your Xbox One console cannot be set to offline.

Challenges must be completed within a set amount of time. You have weeks, months, or just hours to complete the challenge. If you don't complete it within the given timeframe, you won't receive a reward.

You can earn app achievements just for using an app. For example, you can earn achievements by watching a movie on Netflix. These achievements are at the app developer's discretion. App achievements do not affect gamerscore, though they may bring other in-app
rewards.

Completed achievements that are pending confirmation on Xbox Live will be listed as "Done! Unlocking." This means the achievement will be processed in the order it was sent to the Xbox Live service and may take some time to be confirmed.

If you meet the requirements to complete the achievement or challenge, but you don't see the “toast” icon or the achievement isn't listed, try the solutions below.

It's on Xbox One Series X and more of a case by case basis were most of my achievements pop while some don't after completing the requirements. Nothing really changed. I've gotten achievements to unlock before and after it's just select achievements.

In my opinion, they will never add this function because, in all reality, completion ratio of Xbox achievements has zero affect on anything. It doesn't affect the monthly friends leaderboard. It doesn't change your Xbox Live reputation status. And, when
you compare achievements with friends, those games are usually at the very bottom (from lack of play/time since played) so they are rarely even seen by anyone. But that's just my opinion.