static void Main(string[] args)
{
int inYear = 1916;
int day, month, year;
DateTime date = new DateTime(inYear, 1, 1);
date = date.AddDays(255);
Calendar julian = new JulianCalendar();
Calendar gregorian = new GregorianCalendar();
if (inYear < 1918)
{
day = julian.GetDayOfMonth(date);
month = julian.GetMonth(date);
year = julian.GetYear(date);
date = new DateTime(year, month, day);
}
else
{
if (inYear == 1918)
{
date = date.AddDays(-12);
}
day = gregorian.GetDayOfMonth(date);
month = gregorian.GetMonth(date);
year = gregorian.GetYear(date);
date = new DateTime(year, month, day);
}
Console.WriteLine(date.ToString("dd.MM.yyyy"));
Console.ReadKey();
}
public static SqlString Date2JulianMarkup(SqlBytes input)
{
if (input.IsNull)
{
return SqlString.Null;
}
byte[] inputBytes = input.Value;
int year = (inputBytes[0] << 4 | inputBytes[1] >> 4) - 1024;
int month = (inputBytes[1] & 0x0F) - 1;
int day = inputBytes[2] >> 3;
string result;
DateTime date = new DateTime(year, month, day);
JulianCalendar julianCalendar = new JulianCalendar();
int jYear = julianCalendar.GetYear(date);
int jMonthOffset = julianCalendar.GetMonth(date) - 1;
int jDay = julianCalendar.GetDayOfMonth(date);
if (jYear == year)
{
result = "[Day[" + date_time_format_info.GetMonthName(month) + "-" + day + "|" + date_time_format_info.GetMonthName(month) + " " + day + "]] (O.S. " + date_time_format_info.GetMonthName(month) + " " + jDay + "), " + "[Year[" + year + "]]";
}
else
{
result = "[Day[" + date_time_format_info.GetMonthName(month) + "-" + day + "|" + date_time_format_info.GetMonthName(month) + " " + day + "]], [Year[" + year + "|" + year + "]], (O.S. " + date_time_format_info.GetMonthName(month) + " " + jDay + ", " + jYear + ")";
}
if ((inputBytes[2] & 0x02) == 0)
{
result = "circa " + result;
}
if ((inputBytes[2] & 0x04) == 0)
{
result = "? " + result;
}
return new SqlString(result);
}
public static void Main()
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("da-DK");
JulianCalendar jc = new JulianCalendar();
DateTime lastDate = new DateTime(1700, 2, 18, jc);
Console.WriteLine("Last date (Gregorian): {0:d}", lastDate);
Console.WriteLine("Last date (Julian): {0}-{1}-{2}\n", jc.GetDayOfMonth(lastDate),
jc.GetMonth(lastDate), jc.GetYear(lastDate));
DateTime firstDate = lastDate.AddDays(1);
Console.WriteLine("First date (Gregorian): {0:d}", firstDate);
Console.WriteLine("First date (Julian): {0}-{1}-{2}", jc.GetDayOfMonth(firstDate),
jc.GetMonth(firstDate), jc.GetYear(firstDate));
}
/// <summary>
/// Converts the date in Gregorian Calendar to a date in Julian Calendar.
/// </summary>
/// <param name="date">Date in Gregorian Calendar</param>
/// <returns>
/// Date in Julian Calendar
/// </returns>
public static Date GregorianToJulian(Date date)
{
DateTime dt = new DateTime(date.Year, date.Month, (int)date.Day, new GregorianCalendar());
JulianCalendar julianCalendar = new JulianCalendar();
return(new Date(
julianCalendar.GetYear(dt),
julianCalendar.GetMonth(dt),
julianCalendar.GetDayOfMonth(dt)));
}
private static double CurrentJulianDate()
{
JulianCalendar cal = new JulianCalendar();
int isJanFeb = (14 - cal.GetMonth(DateTime.UtcNow)) / 12;
int years = cal.GetYear(DateTime.UtcNow) + 4800 - isJanFeb;
int monthsMod = cal.GetMonth(DateTime.UtcNow) + (12 * isJanFeb) - 3;
double dayNumber =
cal.GetDayOfMonth(DateTime.UtcNow)
+ Math.Floor((double)(153 * monthsMod + 2) / 5)
+ 365 * years + Math.Floor((double)years / 4) - 32083;
double julianDate = dayNumber
+ ((double)cal.GetHour(DateTime.UtcNow) - 12) / 24
+ (double)cal.GetMinute(DateTime.UtcNow) / 1440
+ (double)cal.GetSecond(DateTime.UtcNow) / 86400;
return(julianDate);
}
public static void Main()
{
JulianCalendar julian = new JulianCalendar();
DateTime date1 = new DateTime(1905, 1, 9, julian);
Console.WriteLine("Date ({0}): {1:d}",
CultureInfo.CurrentCulture.Calendar,
date1);
Console.WriteLine("Date in Julian calendar: {0:d2}/{1:d2}/{2:d4}",
julian.GetMonth(date1),
julian.GetDayOfMonth(date1),
julian.GetYear(date1));
}
public static void Main()
{
// Create an instance of the calendar.
JulianCalendar myCal = new JulianCalendar();
Console.WriteLine(myCal.ToString());
// Create an instance of the GregorianCalendar.
GregorianCalendar myGre = new GregorianCalendar();
// Display the MinSupportedDateTime and its equivalent in the GregorianCalendar.
DateTime myMin = myCal.MinSupportedDateTime;
Console.Write("MinSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal.GetMonth(myMin), myCal.GetDayOfMonth(myMin), myCal.GetYear(myMin));
Console.WriteLine(" (in Gregorian, {0:D2}/{1:D2}/{2:D4})", myGre.GetMonth(myMin), myGre.GetDayOfMonth(myMin), myGre.GetYear(myMin));
// Display the MaxSupportedDateTime and its equivalent in the GregorianCalendar.
DateTime myMax = myCal.MaxSupportedDateTime;
Console.Write("MaxSupportedDateTime: {0:D2}/{1:D2}/{2:D4}", myCal.GetMonth(myMax), myCal.GetDayOfMonth(myMax), myCal.GetYear(myMax));
Console.WriteLine(" (in Gregorian, {0:D2}/{1:D2}/{2:D4})", myGre.GetMonth(myMax), myGre.GetDayOfMonth(myMax), myGre.GetYear(myMax));
}