Twitter Help Please!!

Anyone please help!! If you look below at the screen shot. This is from twitter.com.

When a new tweet is posted the tweet ends in 5 Jun this occurs for each tweet.

I have never had this issue before. For the past 3 years it use to be where each tweet ended in 1m 2m etc.

I am on a Macbook Pro. I have logged onto to other laptops and the problem does not occur so it is solely my own laptop.

I have no idea what has happened. Does anyone have any advice on how to make this switch back. It is extremely annoying Thank you!!!