需要时间数学指导

发布于 2024-11-29 02:30:09 字数 424 浏览 0 评论 0原文

我有一个日期时间对象，时间为上午 10:00 该时间代表一天中应该运行报告的时间。

我想计算从现在到上午 10:00 的剩余时间量，

我的部分困惑是现在可能是上午 10:00 之后或上午 10:00 之前，

我一直在玩 TimeSpan，但我的结果不太正确......我我确信这很简单，但这是我已经工作了几个小时的事情之一，我需要朝正确的方向推动...

我希望时间跨度对象 timeTillRun 是正确的...这就是我的已经尝试过：

{
  DateTime scheduledRun = DateTime.Today.AddHours(_timeToStart);//_timeToStart = 10
  TimeSpan timeTillRun = DateTime.Now - scheduledRun;
}

原文

I have a DateTime object that is 10:00 AM
This time represents what time of day a report should be run.

I want to calculate the amount of time remaining from NOW until 10:00 AM

part of my confusion is NOW might be after 10:am or BEFORE 10am,

I keep playing around with TimeSpan, but my results are not quite right... I am sure this is simple, but it is one of those things I have been working of for a few hours and I need a push in the right direction...

I want the timespan object timeTillRun to be correct...here is what I have tried:

{
  DateTime scheduledRun = DateTime.Today.AddHours(_timeToStart);//_timeToStart = 10
  TimeSpan timeTillRun = DateTime.Now - scheduledRun;
}

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还如梦归 2024-12-06 02:30:09

这会起作用...但您需要颠倒减法的顺序：

TimeSpan timeTillRun = scheduledRun - DateTime.Now;

请注意，如果当前是上午 10 点之后，timeTillRun 将为负数。您可能还需要检查当前时间是否为上午 10 点或之后，然后向 DateTime.Today 添加 10 小时和一天以获得下一次运行时间。或者，您可以测试 timeTillRun 是否为负数；如果是这样，只需添加一天 (timeTillRun += new TimeSpan(1, 0, 0, 0))。

This will work... but you need to reverse the order of subtraction:

TimeSpan timeTillRun = scheduledRun - DateTime.Now;

Note that if it's currently after 10AM, timeTillRun will be negative. You will presumably also need to check if the current time is on or after 10AM, then add 10 hours and one day to DateTime.Today to obtain the next run time. Alternatively, you could test if timeTillRun is negative; if so, just add one day to it (timeTillRun += new TimeSpan(1, 0, 0, 0)).

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挽手叙旧 2024-12-06 02:30:09

试试这个

        DateTime timeToStart = DateTime.Today.AddHours(10);

        TimeSpan timeTillRun;

        // Checking to see if current time is passed schedule run, if it is then we add a day (this is assuming this is run daily, if days are skipped like weekends for example then this would need some tweaking)
        if (DateTime.Now > timeToStart)
            timeTillRun = DateTime.Now.AddDays(1.0) - timeToStart;
        else
            timeTillRun = DateTime.Today - timeToStart;

        double totalHoursRemaining = timeTillRun.TotalHours; // get total hours remaining
        string prettyRemaining = String.Format("{0} day and {1} hours", timeTillRun.Days, timeTillRun.Hours); // can do some outputting here

Try this

        DateTime timeToStart = DateTime.Today.AddHours(10);

        TimeSpan timeTillRun;

        // Checking to see if current time is passed schedule run, if it is then we add a day (this is assuming this is run daily, if days are skipped like weekends for example then this would need some tweaking)
        if (DateTime.Now > timeToStart)
            timeTillRun = DateTime.Now.AddDays(1.0) - timeToStart;
        else
            timeTillRun = DateTime.Today - timeToStart;

        double totalHoursRemaining = timeTillRun.TotalHours; // get total hours remaining
        string prettyRemaining = String.Format("{0} day and {1} hours", timeTillRun.Days, timeTillRun.Hours); // can do some outputting here

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