Function relative_time 

pub fn relative_time(dt: DateTime<Utc>) -> String

Return a human-friendly relative-time string for the given UTC timestamp.

Examples

• "just now"
• "1 minute ago" / "5 minutes ago"
• "1 hour ago" / "3 hours ago"
• "1 day ago" / "2 days ago"
• "1 week ago" / "3 weeks ago"
• "1 month ago" / "6 months ago"
• "1 year ago" / "2 years ago"