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Substracting Time to QTime

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B Offline
Babs

wrote on last edited by Babs

#1
Hello,
Is it possible to substract to to a QTime. For example if a have :
```
QTime startDayTime=QTime::fromString(startHour(),"hh:mm");
```
and i want to substract 2 hours from it?
Anyone got an idea of how to do so?
P 1 Reply Last reply

0
B Babs
Hello,
Is it possible to substract to to a QTime. For example if a have :
```
QTime startDayTime=QTime::fromString(startHour(),"hh:mm");
```
and i want to substract 2 hours from it?
Anyone got an idea of how to do so?
P Offline
P Offline
Pl45m4

wrote on last edited by Pl45m4

#2
@Babs

You can add a negative amount of seconds

https://doc.qt.io/qt-5/qtime.html#addSecs
```
startDayTime.addSecs(-2 * 3600);
```
If debugging is the process of removing software bugs, then programming must be the process of putting them in.

~E. W. Dijkstra
B 1 Reply Last reply

5
P Pl45m4
@Babs

You can add a negative amount of seconds

https://doc.qt.io/qt-5/qtime.html#addSecs
```
startDayTime.addSecs(-2 * 3600);
```
B Offline
B Offline
Babs

wrote on last edited by

#3

@Pl45m4 thank you
1 Reply Last reply

1