PL
C # / .NET - przekonwertuj DateTime na ISO 8601
3 points
W tym artykule pokażemy, jak w C # / .NET przekonwertować obiekt DateTime na ciąg iso 8601.
Szybkie rozwiązanie:
xxxxxxxxxx1
using System;2
3
public class Program4
{5
public static void Main()6
{7
DateTime time = DateTime.Now;8
DateTime utcTime = DateTime.UtcNow;9
10
Console.WriteLine(time.ToString("yyyy-MM-ddTHH:mm:sszzz")); // 2020-07-28T08:40:39+00:0011
Console.WriteLine(utcTime.ToString("yyyy-MM-ddTHH:mm:ssZ")); // 2020-07-28T08:40:39Z12
}13
}Wynik:
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2020-07-28T08:40:39+00:002
2020-07-28T08:40:39ZPoniżej znajdziesz pełne przykłady:
Ważne jest, aby użyć niezmiennych informacji o kulturze, aby uzyskać właściwy czas sformatowany z metody ToString().
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using System;2
using System.Globalization;3
4
public class Program5
{6
private static CultureInfo culture = CultureInfo.InvariantCulture;7
8
public static void Main()9
{10
DateTime time = DateTime.Now;11
DateTime utcTime = DateTime.UtcNow;12
13
// without time zone infomration14
Console.WriteLine(time.ToString("s", culture)); // 2020-05-22T21:08:4215
Console.WriteLine(utcTime.ToString("s", culture)); // 2020-05-22T21:08:4216
17
// with time zone information (+/-HH:MM or Z)18
Console.WriteLine(time.ToString("o", culture)); // 2020-05-22T21:08:42.9082887+00:0019
Console.WriteLine(utcTime.ToString("o", culture)); // 2020-05-22T21:08:42.9082887Z20
}21
}Wynik:
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2020-05-22T21:08:422
2020-05-22T21:08:423
2020-05-22T21:08:42.9082887+00:004
2020-05-22T21:08:42.9082887ZIstnieją różne formaty czasów ISO 8601.
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using System;2
3
public class Program4
{5
public static void Main()6
{7
DateTime time = DateTime.Now;8
9
Console.WriteLine(time.ToString("yyyy-MM-ddTHH:mm:sszzz")); // 2019-08-18T07:36:13+01:0010
Console.WriteLine(time.ToString("yyyyMMdd")); // 2019081811
Console.WriteLine(time.ToString("--MM-dd")); // --08-1812
13
DateTime utcTime = DateTime.UtcNow;14
15
Console.WriteLine(utcTime.ToString("yyyy-MM-ddTHH:mm:ssZ")); // 2019-08-18T06:36:13Z16
Console.WriteLine(utcTime.ToString("yyyyMMddTHHZ")); // 20190818T06Z17
}18
}19
20
// ------------------------------------------------------21
// Check other custom formats at the end of this section.22
//Wynik:
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2019-08-18T07:36:13+01:002
2019-08-18T06:36:13Z3
20190818T06Z4
201908185
--08-18Uwaga: ciąg daty i godziny z przyrostkiem Z powinien być oparty na
DateTime.UtcNow. Sprawdź ten link, aby uzyskać więcej informacji.
Inne formaty niestandardowe:
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/*2
3
--[ To use with DateTime.Now ]----------------------4
FORMAT TEXT5
6
yyyy-MM-ddTHH:mm:sszzz 2019-08-18T07:36:13+01:007
yyyy-MM-ddTHH:mm:sszz 2019-08-18T07:36:13+018
yyyy-MM-ddTHH:mm:ss 2019-08-18T07:36:139
yyyy-MM-ddTHH:mmzzz 2019-08-18T07:36+01:0010
yyyy-MM-ddTHH:mmzz 2019-08-18T07:36+0111
yyyy-MM-ddTHH:mm 2019-08-18T07:3612
yyyy-MM-ddTHHzzz 2019-08-18T07+01:0013
yyyy-MM-ddTHHzz 2019-08-18T07+0114
yyyy-MM-ddTHH 2019-08-18T0715
yyyy-MM-dd 2019-08-1816
17
yyyyMMddTHHmmsszzz 20190818T073613+01:0018
yyyyMMddTHHmmsszz 20190818T073613+0119
yyyyMMddTHHmmzzz 20190818T0736+01:0020
yyyyMMddTHHmmzz 20190818T0736+0121
yyyyMMddTHHzzz 20190818T07+01:0022
yyyyMMddTHHzz 20190818T07+0123
yyyyMMddTHH 20190818T0724
yyyyMMdd 2019081825
26
--MM-dd --08-1827
28
29
--[ To use with DateTime.UtcNow ]-------------------30
FORMAT TEXT31
32
yyyy-MM-ddTHH:mm:ssZ 2019-08-18T06:36:13Z33
yyyy-MM-ddTHH:mmZ 2019-08-18T06:36Z34
yyyy-MM-ddTHHZ 2019-08-18T06Z35
36
yyyyMMddTHHmmssZ 20190818T063613Z37
yyyyMMddTHHmmZ 20190818T0636Z38
yyyyMMddTHHZ 20190818T06Z39
40
*/W tej sekcji prezentowana jest niestandardowa metoda zwracająca tydzień lub datę porządkową.
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using System;2
using System.Globalization;3
4
public static class ISO8601TimeUtils5
{6
public static string GetSimpleWeekDate(DateTime time)7
{8
CultureInfo culture = CultureInfo.InvariantCulture;9
10
Calendar calendar = culture.Calendar;11
DateTimeFormatInfo format = culture.DateTimeFormat;12
13
int week = calendar.GetWeekOfYear(time, 14
format.CalendarWeekRule, format.FirstDayOfWeek);15
16
return time.Year + "-W" + week;17
}18
19
public static string GetExtendedWeekDate(DateTime time)20
{21
string week = GetSimpleWeekDate(time);22
23
return week + "-" + (int)time.DayOfWeek;24
}25
26
public static string GetOrdinalDate(DateTime time)27
{28
return time.Year + "-" + time.DayOfYear;29
}30
}31
32
// Usage example:33
34
public class Program35
{36
public static void Main()37
{38
DateTime time = DateTime.Now;39
40
Console.WriteLine(ISO8601TimeUtils.GetExtendedWeekDate(time)); // 2019-W34-041
Console.WriteLine(ISO8601TimeUtils.GetSimpleWeekDate(time)); // 2019-W3442
Console.WriteLine(ISO8601TimeUtils.GetOrdinalDate(time)); // 2019-23043
}44
}Wynik:
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2019-W34-02
2019-W343
2019-230Uwaga: powyższy przykład zwraca inny numer tygodnia w zależności od konfiguracji metody
Calendar.GetWeekOfYear.
