"Last visited" list of "my subreddits"

When I used to click "My subreddits" list, it would give me the dates of the last time I visited a subreddit that I am subscribed to.

Now it just says "5 months ago", "2 days ago" or similar.

How do I get back the exact date?

• Night mode: false
• RES Version: 5.8.2
• Browser: Firefox
• Browser Version: 54
• Cookies Enabled: true
• Reddit beta: false

Thanks