CSharp examples for System:DateTime Format
To Relative Time Past
using System;/*from w w w . jav a 2 s . co m*/ public class Main{ private static string _ToRelativeTimePast(DateTime dt, DateTime utcNow) { TimeSpan ts = utcNow - dt; double delta = ts.TotalSeconds; if (delta < 60) { return ts.Seconds == 1 ? "1 sec ago" : ts.Seconds + " secs ago"; } if (delta < 3600) // 60 mins * 60 sec { return ts.Minutes == 1 ? "1 min ago" : ts.Minutes + " mins ago"; } if (delta < 86400) // 24 hrs * 60 mins * 60 sec { return ts.Hours == 1 ? "1 hour ago" : ts.Hours + " hours ago"; } int days = ts.Days; if (days == 1) { return "yesterday"; } else if (days <= 2) { return days + " days ago"; } else if (utcNow.Year == dt.Year) { return dt.ToString("MMM %d 'at' %H:mmm"); } return dt.ToString(@"MMM %d \'yy 'at' %H:mmm"); } }