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How to make a timer that starts at a specific time, then fires every 24 hours after that?

I want the user to be able to chose the time the ClearFiles() function will get called every day. The timer executes at the time the user selects but never correctly fires after the x amount of minutes / hours specified.
Code:
DateTime nowTime = DateTime.Now;
DateTime deleteTime = new DateTime(nowTime.Year, nowTime.Month, nowTime.Day,
FileFilter.deleteTime.Hour, FileFilter.deleteTime.Minute, 0);
if (nowTime > deleteTime)
{
deleteTime = deleteTime.AddDays(1)
}
double tickTime = (deleteTime - nowTime).TotalMilliseconds;
aTimer = new Timer(tickTime);
aTimer.Elapsed += (s, e) => ClearFiles(FileFilter.pathName);
aTimer.Start();

C# Countdown timer, no accuracy. Looking for different way to do this

I have a count down timer, when running it seems to get behind by 1 second every 5 - 10 seconds.
Is there any way to make this countdown timer be accurate to system clock time?
Public MAIN()
timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromMilliseconds(1000);
timer.Tick += timer_Tick;
void timer_Tick(object sender, object e)
{
basetime = basetime - 1;
txt.Text = string.Format("{0:00}:{1:00}:{2:00}", basetime / 3600, (basetime / 60) % 60, basetime % 60);
if (basetime == 0)
{
timer.Stop();
Timer_Start.IsEnabled = Timer_Pause.IsEnabled = Timer_Restart.IsEnabled = true;
}
}
i would love to try a few different ideas, also i will have to pause and start the timer periodically so will have to work that in to the solution as well.

Instead of trying to compute the time from an iterator, compute it using the system clock.
Change basetime's type to DateTime.
When you start the timer, set the base time: basetime = DateTime.Now;
And set a TimeSpan variable to the amount of time to countdown: countdown = new TimeSpan(/*your code here*/);
Now update your timer_Tick like so:
void timer_Tick (object sender, object e)
{
var now = DateTime.Now;
// This computes the remaining time and formats it for display
txt.Text = (now - basetime).ToString("hh:mm:ss");
// Checks that the timer is complete
if (now - basetime > countdown)
{
/* stop the timer */
}
}
DispatcherTimer isn't perfectly accurate, it is approximate, which for most tasks is good enough, but for keeping track of time is inadequate. Instead you may use it to approximate a second, and then update your timer with the actual time from the system clock.

Solution;
Run a stop watch and compare the math to it.
P.S. I know there is better ways of doing this and may update in future releases.
void Timer_Tick(object sender, object e)
{
int BaseINMill = basetime * 1000;
//total of milliseconds left
basetimeMILL.Text = BaseINMill.ToString() ;
//Display the total Milliseconds elapsed
ConsolePost.Text = VerifyMill.ElapsedMilliseconds.ToString();
if( CorrectionWatch.ElapsedMilliseconds >= 2000)
{
PreCorrBaseTime = PreCorrBaseTime - 2;
//Display the Correction timer Milliseconds elapsed
Correctiontest.Text = CorrectionWatch.ElapsedMilliseconds.ToString();
CorrectionWatch.Restart();
//Show the total time between seconds changing on screen
ConsoleOutputPre.Text = stopwatch.ElapsedMilliseconds.ToString();
basetime = PreCorrBaseTime;
txt.Text = string.Format("{0:00}:{1:00}:{2:00}", basetime / 3600, (basetime / 60) % 60, basetime % 60);
if (basetime == 0)
{
timer.Stop();
Timer_Start.IsEnabled = Timer_Pause.IsEnabled = Timer_Restart.IsEnabled = true;
VerifyMill.Stop();
}
stopwatch = Stopwatch.StartNew();
}
else {
if (stopwatch.ElapsedMilliseconds >= 975 && stopwatch.ElapsedMilliseconds <=1025 )
{
//Show the total time between seconds changing on screen
ConsoleOutputPre.Text = stopwatch.ElapsedMilliseconds.ToString();
basetime = basetime - 1;
txt.Text = string.Format("{0:00}:{1:00}:{2:00}", basetime / 3600, (basetime / 60) % 60, basetime % 60);
if (basetime == 0)
{
timer.Stop();
Timer_Start.IsEnabled = Timer_Pause.IsEnabled = Timer_Restart.IsEnabled = true;
VerifyMill.Stop();
}
stopwatch = Stopwatch.StartNew();
}
if (stopwatch.ElapsedMilliseconds >= 1026 && stopwatch.ElapsedMilliseconds <= 2000)
{
//Show the total time between seconds changing on screen
ConsoleOutputPre.Text = stopwatch.ElapsedMilliseconds.ToString();
basetime = basetime - 1;
txt.Text = string.Format("{0:00}:{1:00}:{2:00}", basetime / 3600, (basetime / 60) % 60, basetime % 60);
if (basetime == 0)
{
timer.Stop();
Timer_Start.IsEnabled = Timer_Pause.IsEnabled = Timer_Restart.IsEnabled = true;
VerifyMill.Stop();
}
stopwatch = Stopwatch.StartNew();
}
if (stopwatch.ElapsedMilliseconds > 2000)
{
ErrorPrompt();
VerifyMill.Stop();
}
}
}

Include hour in timer countdown

I am trying to create a countdown that includes hours.
private int time = 3660;
public MainWindow()
{
var vm = new TimerViewModel();
InitializeComponent();
// get display setting - 2 means extended
int displayType = Screen.AllScreens.Length;
// set the windows datacontext
DataContext = vm;
// set up the timedispatcher
dt.Interval = new TimeSpan(0, 0, 1);
dt.Tick += Timer_Tick;
}
private void Timer_Tick(object sender, EventArgs e)
{
switch(time)
{
case int x when x > 10 && x <= 20:
TimerPreview.Foreground = Brushes.Orange;
time--;
break;
.....................
default:
TimerPreview.Foreground = Brushes.LimeGreen;
time--;
break;
}
TimerPreview.Content = string.Format("00:{0:00}:{1:00}", time / 60, time % 60);
}
I cannot work out how to get the countdown working correctly with hours. It works great with minutes and seconds.
TimerPreview.Content = string.Format("{0:00}:{1:00}:{2:00}", time ???, time ??? 60, time % 60);
I have tried a number of combinations but have failed to find a solution. What am I missing? Many thanks.

Use 3600 (the number of seconds in an hour), and use the modulus operator on the minutes just like you're doing on the seconds (since you want 60 minutes to appear to roll over into a new hour):
TimerPreview.Content =
string.Format("{0:00}:{1:00}:{2:00}", time / 3600, (time / 60) % 60, time % 60);
// 320 -> 00:05:20
// 7199 -> 01:59:59
// 7201 -> 02:00:01

Another (arguably more readable) option would be to use a TimeSpan to handle the formatting:
TimerPreview.Content = TimeSpan.FromSeconds(time).ToString(#"hh\:mm\:ss");
Result when time is 3660:
01:01:00
EDIT: Thanks to #GrantWinney for pointing out that the default string format for a TimeSpan is the same as above, unless the timespan is greater than a day, in which case it includes days as well. So you could just do:
TimerPreview.Content = TimeSpan.FromSeconds(time).ToString();

How do I make the progressBar1 to progress each time by the time I set to timer interval to?

I have this method that i call it from a timer tick:
private void NewsUpdate()
{
counter += 1;
progressBar1.Value = counter * 10;
progressBar1.Value = counter;
label9.Text = counter.ToString();
label9.Visible = true;
if (counter == 10)
{
client.Encoding = System.Text.Encoding.GetEncoding(1255);
page = client.DownloadString("http://rotter.net/scoopscache.html");
TextExtractor.ExtractDateTime(page, newText, dateTime);
StreamWriter w = new StreamWriter(#"d:\rotterhtml\rotterscoops.html");
w.Write(page);
w.Close();
TextExtractor.ExtractText(#"d:\rotterhtml\rotterscoops.html", newText, dateTime);
combindedString = string.Join(Environment.NewLine, newText);
counter = 0;
}
}
The progressBar1 is set from 0 to 100.
I want that if I make:
if (counter == 10)
Then the progressBar1 will move to the end after 10 seconds.
If I set it to 50 then it's 50 seconds so the progressBar1 should move 50 seconds until the end.
The timer1 in the designer is set to 1000ms
For example now the way it is:
counter += 1;
progressBar1.Value = counter * 10;
progressBar1.Value = counter;
label9.Text = counter.ToString();
label9.Visible = true;
if (counter == 10)
It will count to 10 the progressBar1 will move by 10 and then will return to the beginning.
I want to that if I change it to 10 50 or 33 the progressBar1 will know to move until the end according to the seconds counted.
If its 33 then count 33 and move the progressBar1 to the end after 33 seconds.
What i want to do is that if i set the IF == 10 then the progressBar will Increment 10 seconds * 10 steps Increment so in 10 seconds the progressBar will get to 100 to the end. Then over again ( this timer is update it should keep running all the time i don't want to stop it i just check if 10 seconds passed make update. And i also want that the progressBar will Increment according to the limit i set in this case 10 untill the end. If its == 10 then the progressBar should Increment each second by 10. And if i set it to == 50 for example then the progressBar should Increment by 2 each s

You want a counter with n steps, where n is the number of seconds to completion.
There are two ways to approach this:
(Preferred) Set the Maximum property of the ProgressBar. This will make everything automatic!
counter++;
progressBar1.Maximum = 33; //This could be set in the designer, or on init
progressBar1.Value = counter;
Calculate the interval yourself. Do this by dividing the counter by the total number of seconds, then multiplying by the range (100 in this case).
counter++;
progressBar1.Value = (int)Math.Round((counter / 33f) * 100);
All of your other code sounds fine based on your comment.

Timer in XNA framework

I have a problem with my game. It is divided in a two states: GameState.MainMenu and GameState.Playing.
I want to draw on screen the timer when I playing. I use gameTime.TotalGameTime.Minutesand
gameTime.TotalGameTime.Seconds variable. But when I clicked on button Play Now, and my game switched state from GameState.MainMenu to GameState.Playing., the timer dosent start from 0. It starts with the time, which elapsed when I spend in MainMenu. I try create next variable to count time, which I spent in MainMenu, and I try to subtract from the first variable, but the displaying time is not properly.
My substracting time:
minutesPlaying = gameTime.TotalGameTime.Minutes; ;
secondsPlaying = gameTime.TotalGameTime.Seconds;
switch (currentGameState)
{
case GameState.MainMenu:
minutesMenu = gameTime.TotalGameTime.Minutes;
secondsMenu = gameTime.TotalGameTime.Seconds;
if (btnPlay.isTapped == true)
{
currentGameState = GameState.Playing;
soundEffectInstance.Stop();
}
btnPlay.Update(collection);
break;
case GameState.Playing:
minutesTotal = minutesPlaying - minutesMenu;
secondsTotal = secondsPlaying - secondsMenu;
break;
}
Invoke my method:
timer.Update(minutesTotal, secondsTotal);
Update method:
public void Update(int min, int sec)
{
string seconds, minutes;
seconds = sec.ToString();
minutes = min.ToString();
if (sec <= 9) seconds = "0" + seconds;
if (min <= 9) minutes = "0" + minutes;
nowString = minutes + ":" + seconds;
}
Thanks for answer :)

I would use a 'StopWatch' to 'Start' and 'Pause' the tracking of time spent in your playing state. When the playing state is entered start the 'StopWatch' and then pause it when leaving that state.

Your on the right track, but I think you should have a time passed variable instead of having to subtract it from the original gameTime, this way if you go back to the menu, then back into the game, your method wont be broken. Basicly it just takes a TimeSpan at 0 and adds gameTime to it as time passes, giving you the amount of time spent in the level.
First off add a new TimeSpan
public TimeSpan TimePassed;
Now in your Update() method inside case GameState.Playing: you will need to incriment the timer.
TimePassed -= gameTime.ElapsedGameTime;
You can also reset the timer to Zero if you need to make a new level (If that applies, Ex: Replaying a level will need a timer reset)
Now to render the time in your Draw() method.
string timeString = TimePassed.Minutes.ToString("00") + ":" + TimePassed.Seconds.ToString("00");
spriteBatch.DrawString(FONT,timeString,POSITION,Color.White);
And there you go!

You should modify time only in Playing state, I have modified the code to achieve it, whithout too much changes... PlayTime keeps the total time elapsed in the playing state.
TimeSpan Elapsed ;
switch (currentGameState)
{
case GameState.MainMenu:
if (btnPlay.isTapped == true)
{
currentGameState = GameState.Playing;
soundEffectInstance.Stop();
}
btnPlay.Update(collection);
Elapsed = TimeSpan.Zero;
break;
case GameState.Playing:
Elapsed = gametime.ElapsedGameTime;
break;
}
Invoke my method:
timer.Update(Elapsed);
Update method:
TimeSpan PlayTime = TimeSpan.Zero;
public void Update(TimeSpan Elapsed)
{
PlayTime.Add(Elapsed);
string seconds, minutes;
seconds = PlayTime.Seconds.ToString();
minutes = PlayTime.Minutes.ToString();
if (sec <= 9) seconds = "0" + seconds;
if (min <= 9) minutes = "0" + minutes;
nowString = minutes + ":" + seconds;
}

Try this:
Before the game starts you don't need to keep track of the time, so I have set minutesPlaying and secondsPlaying to 0 in GameState.MainMenu. Don't initialize minutesPlaying and secondsPlaying within the main Update() function.
minutesPlaying = 0;
secondsPlaying = 0;
switch (currentGameState)
{
case GameState.MainMenu:
if (btnPlay.isTapped == true)
{
currentGameState = GameState.Playing;
soundEffectInstance.Stop();
}
btnPlay.Update(collection);
break;
case GameState.Playing:
secondsPlaying += gameTime.ElapsedGameTime.Seconds;
if (secondsPlaying >= 60)
{
minutesPlaying++;
secondsPlaying = 0;
}
break;
}
When you display the time, just display minutesPlaying and secondsPlaying. You don't need any extra variables.
If that doesn't work, you can always keep track of the milliseconds (secondsPlaying += gameTime.ElapsedGameTime.Milliseconds) that pass when the game starts and divide the value by 1000 to display the seconds.