如何转换日期时间格式为23:59:59

Question

I'm having two dates FromDate and toDate

converting dates like following and passing as parameters to stored procedure:

both variable are of DateTime FromDate, DateTime toDate variables

initial values coming like {10/1/2013 12:00:00 AM}

I have converted that using below code to {10/1/2013 00:00:00}

  sparamFromDate.Value = FromDate.ToString("yyyy-MM-dd HH:mm:ss");

  sparamToDate.Value = toDate.ToString("yyyy-MM-dd HH:mm:ss");

which is giving me expected result for FromDate as : 2013-10-11 00:00:00.000

But I need a todate in following format how can i convert this in code?

toDate : 2013-10-11 23:59:59.000

Answer 1

toDate.ToString("yyyy-MM-dd 23:59:59.000");

如果toDate只是日期或者有一个时间组件，则无关紧要 - 输出将与您想要的相同。

Answer 2

I believe that you are asking for the toDate to be inclusive of all the minutes within that date, regardless of the actual time portion of the calendar time.

The following expression should achieve that result:

toDate.Date.Add(new TimeSpan(0, 23, 59, 59, 999)).ToString("yyyy-MM-dd HH:mm:ss.nnn");

Wal's answer is actually easier.

You should also use the InvariantCulture to perform the ToString() operation, as you may end up with something other than ":" or "-" as date and time field separators. Which will likely confuse your database engine.

Answer 3

您可以在一天结束时获取DateTime，然后使用以下命令获取ToString（）：

toDate.Date.AddDays(1).AddMilliseconds(-1)

Answer 4

toDate.Value = toDate.ToString("yyyy-MM-dd HH:mm:ss.nnn");