I'm reading some specifications and there is one point that says I need a variable that will represent time in seconds. Maybe this is an easy question, but how can I express a time duration in seconds in C#?
Store the time in a TimeSpan type object and then you can get total seconds through TimeSpan.TotalSeconds property
TimeSpan ts = new TimeSpan(1, 10, 30); // 1 hour , 10 mins and 30 seconds.
double seconds = ts.TotalSeconds;
Related
I have an application which I am running using windows scheduler every 30 minutes, I also have a config file which is a datatable called config. I am going through each of the rows, which has a schedule column and if the time is in the 30 minute window the program should run the whole program. The time windows are 12:00:00 and 12:30:00 and so on, as can be seen I'm checking the current time and the row time as can be seen blow, how would I make it run?
I tried the if statement below to see if it runs are the current time only and it doesn't work any ideas why this would be
TimeSpan time = DateTime.Now.TimeOfDay;
TimeSpan runningTime = DateTime.Parse(dr["scheduledTime"].ToString()).TimeOfDay;
if (time == runningTime)
If the time isn't exactly on the hour or half past the hour, the code in your if statement won't run, try this instead:
TimeSpan time = DateTime.Now.TimeOfDay;
TimeSpan runningTime = DateTime.Parse(dr["scheduledTime"].ToString()).TimeOfDay;
if (time >= runningTime && time <= (runningTime + new TimeSpan(0, 30, 0)))
When your program runs, DateTime.Now.TimeOfDay will contain something similar to 13:27:37, which obviously won't be equal to 13:00:00. So all you do is check that the current time is within the 30 minute window. We achieve that by checking that the current time elapsed since midnight (which is what .TimeOfDay on a DateTime gives you) is greater than or equal to the time elapsed since midnight of the TimeSpan you retrieve from your DataTable, and that it is also less than or equal to that same time slot plus 30 minutes.
I am new to c#. For school I have to make an exercise that converts the hours, minutes and seconds to a numeric value. So 37 min and 30sec becomes 0.625. Anyone know how to do this?
thanks a lot
var duration = new TimeSpan(0, 37, 30);
string s = duration.TotalHours.ToString("0.###");
// s === "0.625"
Assuming that you want hours, minutes and seconds to be converted to hours, you would do it like this:
double result = hours + minutes/60.0 + seconds/(60.0 * 60.0);
This is because a minute is 1/60th of an hour and a second is 1/3600th of an hour (3600 == 60 * 60) so the calculation uses simple scaling.
I'm thinking that you will need to show these kinds of calculations rather than using TimeSpan, if the teacher is looking to see if you understand the conversion logic.
Won't provide a copy/paste ready solution (homework :-p), but the TimeSpan class has everything you need: Parse methods and constructors to build a TimeSpan from various times (hours, minutes,...) and properties to return results as minutes, hours...
You will first want to convert the hours, minutes and seconds to a total number of seconds. Then you can compare that to the number of seconds in one hour. Take care when doing integer devision, you will first have to convert to a double!
I am trying to calculate the time difference of two given times slots but the answers does not seem to be correct what am I doing wrong?
My code:
For some reason the value given amFinish is changed from 16:30 to 16:18:00 I have no idea why!
And What if I have a text box and the user enters 16.30 how would I take that value and compute it as 16hrs and 30mins
The answer should be 05.30 but instead I get 05.18. Any sugestions?
30% of an hour is 18 minutes.
16.30 hours is 16 hours and 30/100 parts of an hour.
16 hours and a half would be 16.50.
You have decimal 16.3 hours, which is 16 hours and 18 minutes as Oded explains.
If you need to specify both hours, minutes, and seconds, use the overload of the TimeSpan constructor which takes three arguments:
TimeSpan amStart = new TimeSpan(0, 11, 0);
TimeSpan amFinish = new TimeSpan(16, 30, 0);
And if you need to convert a string into a TimeSpan, use something like:
TimeSpan amFinish = TimeSpan.ParseExact("16.30", #"hh\.mm", CultureInfo.InvariantCulture);
Hello everybody i have asp.net mvc4 application where i made countdown something like this:
How i can get how many days, hours, minutes and seconds are remaining with two daetime range
i have tried this does not working on minutes .TotalMinutes
datetime.TotalDays();
Use
Timespan remtime = YourLaunchDateTime - DateTime.Now;
Then:
Use remtime.Days for Days
Use remtime.Hours for Hours
Use remtime.Minutes for Minutes
Use remtime.Seconds for Seconds
Do not use any Total... property as it converts all time into that entity.
You are using remtime.TotalMinutes. This will convert your Time into Minutes.
For eg. if 3 Hours are left this will return 180 Minutes (bcoz 3 * 60 = 180)
TimeSpan span = dateTime1 - dateTime2;
span will contain needed data.
You should use Minutes instead of TotalMinutes. TotalMinutes makes sum of all minutes within the timespan.
I have created 2 Timespans below:
TimeSpan currentTs = TimeSpan.FromSeconds(43995); //12:13:15
TimeSpan towTime = TimeSpan.FromSeconds(303072); //12:11:12
I'm trying to find the difference in minutes (by the seconds I'm passing it, it looks like they are on different days). I am hoping for around 2 minutes difference, but in reality, I'm getting -57 minutes.
int timeDifference = (int)currentTs.Subtract(towTime).Minutes;
Can someone explain what i am doing wrong?
If you are just looking for the difference between the minutes (not including the days, hours or seconds), then you can use
double timeDifference = currentTs.Minutes - towTime.Minutes; // 2
This is just the difference of the minutes component though. As other people have said, these times are separated by 3 days, so a TimeSpan possibly isn't ideal.
Or, If you want the seconds to be included as well, you can use
TimeSpan minutes1 = new TimeSpan (0, currentTs.Minutes, currentTs.Seconds);
TimeSpan minutes2 = new TimeSpan (0, towTime.Minutes, towTime.Seconds);
double timeDifference = minutes1.TotalMinutes - minutes2.TotalMinutes // 2.05;
You are looking for the TotalMinutes property not Minutes - the later is just the minutes part of the time difference, the former is the full time difference expressed in fractional minutes:
double timeDifference = currentTs.Subtract(towTime).TotalMinutes;
Also easier to read is:
double timeDifference = (currentTs - towTime).TotalMinutes;
I'm guessing you want to completely ignore the fact that the times are different by about 3 days. In that case, if you take the remainder after division by 86400 (the number of seconds in a day) and pass that to TimeSpan.FromSeconds, you should hopefully get what you want:
TimeSpan currentTs = TimeSpan.FromSeconds(43995 % 86400); //12:13:15
TimeSpan towTime = TimeSpan.FromSeconds(303072 % 86400); //12:11:12, ignoring the 3 days.
double timeDifference = (currentTs - towTime).TotalMinutes;
I got the value of timeDifference as 2.05 when I tried this.
Of course, if currentTs is earlier in the day than towTime (perhaps because midnight falls between them), the time difference will come out negative. If you still want to count the number of minutes between the two, assuming that currentTs is always after towTime, then you'll need to add 1440 (the number of minutes in a day) to timeDifference if it works out negative:
if (timeDifference < 0)
{
timeDifference += 1440;
}
Because the second timespan isn't 12:11:12, its 3:12:11:12.
So you're going to get a negative result which would be in the thousands if you did total minutes (since its representing something like -2days, 57 minutes, 57 seconds)...since you just ask for Minutes and not TotalMinutes you just get the -57.
currentTime is less then towTime (you seem to be missing one digit).