如何在C＃中将字符串日期转换为以下日期格式dd / MM / yyyy t：m：s

Question

I need to convert date format from string to dd/MM/yyyy tt:mm:ss in C# for example convert

string = "2015-07-21T23:00:00.000Z" 

to

{21/07/2015 00:00:00}

Answer 1

I would parse it to DateTime with DateTimeStyles.RoundtripKind enumeration since it is ISO 8601 format then use it's Date property to set it's time part to midnight.

var dt = DateTime.Parse("2015-07-21T23:00:00.000Z", null, DateTimeStyles.RoundtripKind);
Console.WriteLine(dt.Date.ToString("dd'/'MM'/'yyyy HH:mm:ss")); // 21/07/2015 00:00:00

Here a demonstration .