time addition

As it's a non-standard format (hours exceed 23), I think you'll need to do the addition manually.

Try this (note that need to add some error checking):

string[] items = textBox1.Text.Split(':');

int hours = int.Parse(items[0]);

int mins = int.Parse(items[1]);

int secs = int.Parse(items[2]);

string[] itemsAdd = textBox2.Text.Split(':');

int hoursAdd = int.Parse(itemsAdd[0]);

int minsAdd = int.Parse(itemsAdd[1]);

int secsAdd = int.Parse(itemsAdd[2]);

int secsResult = (secs + secsAdd) % 60;

int minsPlus = (secs + secsAdd) / 60;

int minsResult = (mins + minsAdd + minsPlus) % 60;

int hoursPlus = (mins + minsAdd + minsPlus) / 60;

int hoursResult = hours + hoursAdd + hoursPlus;

textBox3.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", hoursResult, minsResult, secsResult)

1 Reply

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Vulpes13y ago
Accepted answer
As it's a non-standard format (hours exceed 23), I think you'll need to do the addition manually.

Try this (note that need to add some error checking):

string[] items = textBox1.Text.Split(':');
int hours = int.Parse(items[0]);
int mins = int.Parse(items[1]);
int secs = int.Parse(items[2]);
string[] itemsAdd = textBox2.Text.Split(':');
int hoursAdd = int.Parse(itemsAdd[0]);
int minsAdd = int.Parse(itemsAdd[1]);
int secsAdd = int.Parse(itemsAdd[2]);
int secsResult = (secs + secsAdd) % 60;
int minsPlus = (secs + secsAdd) / 60;
int minsResult = (mins + minsAdd + minsPlus) % 60;
int hoursPlus = (mins + minsAdd + minsPlus) / 60;
int hoursResult = hours + hoursAdd + hoursPlus;
textBox3.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", hoursResult, minsResult, secsResult)