public DateTime GetLocalDateTime(string microSiteId)
        {
            var citydatetime = DateTime.Now;

            if (microSiteId == "london" || microSiteId == "international")
            {
                return(DateTime.Now);
            }

            const string timeZonesCacheKey = "TimeZones";

            var timeZoneList = _cacheProvider.GetFromCache <Dictionary <string, TimeZoneInformation> >(timeZonesCacheKey);

            if (timeZoneList == null)
            {
                //read and populate time zones from the registry
                var mZones = TimeZoneInformation.EnumZones();
                Array.Sort(mZones, new TimeZoneComparer());

                timeZoneList = new Dictionary <string, TimeZoneInformation>();

                foreach (var tzone in mZones)
                {
                    if (!timeZoneList.ContainsKey(tzone.Name))
                    {
                        timeZoneList.Add(tzone.Name, tzone);
                    }
                }

                //cache this for 5 mins
                if (timeZoneList.Count > 0)
                {
                    _cacheProvider.AddToCache(timeZonesCacheKey, timeZoneList, DateTime.Now.AddDays(1));
                }
            }

            var tzsn = GetCityTimeZoneStandardName(microSiteId);

            if (!timeZoneList.ContainsKey(tzsn))
            {
                return(citydatetime);
            }

            var destinationTimeZoneInfo = timeZoneList[tzsn];
            var local = DateTime.Now;
            var utc   = local.ToUniversalTime();

            if (destinationTimeZoneInfo == null)
            {
                return(citydatetime);
            }

            var destinationTime = destinationTimeZoneInfo.FromUniversalTime(utc);

            citydatetime = destinationTime;

            return(citydatetime);
        }
Exemplo n.º 2
0
 protected void Page_Init(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         TimeZoneInformation[] zones = TimeZoneInformation.EnumZones();
         selectTimezoneControl.Items.Add(new ListItem("Web Browser TimeZone", "-1"));
         foreach (TimeZoneInformation tz in zones)
         {
             selectTimezoneControl.Items.Add(new ListItem(tz.DisplayName, tz.Index.ToString()));
         }
     }
 }
Exemplo n.º 3
0
 public void TestTryParseTimezoneOffsetToTimeSpan()
 {
     TimeZoneInformation[] tzs = TimeZoneInformation.EnumZones();
     foreach (TimeZoneInformation ti in tzs)
     {
         string   tz   = ti.CurrentUtcBiasString;
         TimeSpan span = TimeSpan.Zero;
         Assert.IsTrue(TimeZoneInformation.TryParseTimezoneOffsetToTimeSpan(tz, out span),
                       string.Format("Error parsing {0}", tz));
         Console.WriteLine("{0}: {1} - {2}", ti.DisplayName, tz, span);
         Assert.AreEqual(span, ti.CurrentUtcBias);
     }
 }
Exemplo n.º 4
0
        public void TestKnownTimeZones()
        {
            int previousHours = 14;

            TimeZoneInformation[] tzs = TimeZoneInformation.EnumZones();
            foreach (TimeZoneInformation ti in tzs)
            {
                Assert.IsTrue(ti.CurrentUtcBias.Minutes == 0 ||
                              Math.Abs(ti.CurrentUtcBias.Minutes) == 30 ||
                              Math.Abs(ti.CurrentUtcBias.Minutes) == 45,
                              string.Format("Minutes = {0}", ti.CurrentUtcBias.Minutes));
                Console.WriteLine("{0}: {1}", ti.DisplayName, ti.CurrentUtcBias);
                Assert.IsTrue(ti.CurrentUtcBias.Hours <= 13 && ti.CurrentUtcBias.Hours >= -12);
                Assert.IsTrue(previousHours + 1 >= ti.CurrentUtcBias.Hours); // adjust an extra hour for daylight savings
                previousHours = ti.CurrentUtcBias.Hours;
            }
        }