private void CreateGMTEntries()
{
const string GmtShort = "GMT";
const string GmtLong = "Greenwich Mean Time";
TimeZones.Add(GmtShort.ToLower(), new TimeZoneTO(GmtShort, GmtShort, GmtLong));
TimeZones.Add(GmtLong.ToLower(), new TimeZoneTO(GmtShort, GmtShort, GmtLong));
for (int hours = -12; hours < 13; hours++)
{
if (hours != 0)
{
for (int minutes = 0; minutes < 2; minutes++)
{
var min = minutes == 0 ? "00" : "30";
var hrs = string.Concat(hours / Math.Abs(hours) < 0 ? "-" : "+",
Math.Abs(hours).ToString(CultureInfo.InvariantCulture).PadLeft(2, '0'));
var gmt = string.Concat(GmtShort, hrs, ":", min);
TimeZones.Add(gmt.ToLower(), new TimeZoneTO(GmtShort, gmt, GmtLong));
}
}
else
{
TimeZones.Add(GmtShort + "-00:30", new TimeZoneTO(GmtShort, GmtShort + "-00:30", GmtLong));
TimeZones.Add(GmtShort + "+00:30", new TimeZoneTO(GmtShort, GmtShort + "+00:30", GmtLong));
}
}
}
/// <summary>
/// Creates a list of all valid time zones
/// </summary>
public void Build()
{
TimeZones = new Dictionary <string, ITimeZoneTO>();
const string UctShort = "UCT";
const string UctLong = "Coordinated Universal Time";
TimeZones.Add(UctShort.ToLower(), new TimeZoneTO(UctShort, UctShort, UctLong));
TimeZones.Add(UctLong.ToLower(), new TimeZoneTO(UctShort, UctShort, UctLong));
for (int hours = -12; hours < 13; hours++)
{
if (hours != 0)
{
for (int minutes = 0; minutes < 2; minutes++)
{
var min = minutes == 0 ? "00" : "30";
var hrs = string.Concat(hours / Math.Abs(hours) < 0 ? "-" : "+",
Math.Abs(hours).ToString(CultureInfo.InvariantCulture).PadLeft(2, '0'));
var uct = string.Concat(UctShort, hrs, ":", min);
TimeZones.Add(uct.ToLower(), new TimeZoneTO(UctShort, uct, UctLong));
}
}
else
{
TimeZones.Add(UctShort + "-00:30", new TimeZoneTO(UctShort, UctShort + "-00:30", UctLong));
TimeZones.Add(UctShort + "+00:30", new TimeZoneTO(UctShort, UctShort + "+00:30", UctLong));
}
}
//
// Create GMT entries
//
const string GmtShort = "GMT";
const string GmtLong = "Greenwich Mean Time";
TimeZones.Add(GmtShort.ToLower(), new TimeZoneTO(GmtShort, GmtShort, GmtLong));
TimeZones.Add(GmtLong.ToLower(), new TimeZoneTO(GmtShort, GmtShort, GmtLong));
for (int hours = -12; hours < 13; hours++)
{
if (hours != 0)
{
for (int minutes = 0; minutes < 2; minutes++)
{
var min = minutes == 0 ? "00" : "30";
var hrs = string.Concat(hours / Math.Abs(hours) < 0 ? "-" : "+",
Math.Abs(hours).ToString(CultureInfo.InvariantCulture).PadLeft(2, '0'));
var gmt = string.Concat(GmtShort, hrs, ":", min);
TimeZones.Add(gmt.ToLower(), new TimeZoneTO(GmtShort, gmt, GmtLong));
}
}
else
{
TimeZones.Add(GmtShort + "-00:30", new TimeZoneTO(GmtShort, GmtShort + "-00:30", GmtLong));
TimeZones.Add(GmtShort + "+00:30", new TimeZoneTO(GmtShort, GmtShort + "+00:30", GmtLong));
}
}
//
// Read in system time zones
//
foreach (TimeZoneInfo timeZoneInfo in TimeZoneInfo.GetSystemTimeZones())
{
if (!TimeZones.TryGetValue(timeZoneInfo.DisplayName.ToLower(), out ITimeZoneTO timeZoneTo))
{
TimeZones.Add(timeZoneInfo.DisplayName.ToLower(),
new TimeZoneTO(timeZoneInfo.StandardName, timeZoneInfo.StandardName, timeZoneInfo.DisplayName));
}
if (!TimeZones.TryGetValue(timeZoneInfo.DaylightName.ToLower(), out timeZoneTo))
{
TimeZones.Add(timeZoneInfo.DaylightName.ToLower(),
new TimeZoneTO(timeZoneInfo.DaylightName, timeZoneInfo.DaylightName, timeZoneInfo.DisplayName));
}
if (!TimeZones.TryGetValue(timeZoneInfo.StandardName.ToLower(), out timeZoneTo))
{
TimeZones.Add(timeZoneInfo.StandardName.ToLower(),
new TimeZoneTO(timeZoneInfo.StandardName, timeZoneInfo.StandardName, timeZoneInfo.DisplayName));
}
}
}