CODEWITHSUNDEEP
qttimestamp
user63898
user63898

Reputation: 30885

How to get the current TimeStamp?

I'm trying to get the current time as TimeStamp without success.

I have this code:

QDateTime setTime = QDateTime::fromString (QString("1970-07-18T14:15:09"), Qt::ISODate);
QDateTime current = QDateTime::currentDateTime();
uint msecs = setTime.time().msecsTo(current.time());

return  QString::number(msecs);

The output is

Sunday, January 25th 1970, 03:17:35 (GMT)

Upvotes: 57

Views: 177982

Answers (3)

Wim Leers
Wim Leers

Reputation: 1631

In Qt 4.7, there is the QDateTime::currentMSecsSinceEpoch() static function, which does exactly what you need, without any intermediary steps. Hence I'd recommend that for projects using Qt 4.7 or newer.

Upvotes: 94

Adrian W
Adrian W

Reputation: 5026

Since Qt 5.8, we now have QDateTime::currentSecsSinceEpoch() to deliver the seconds directly, a.k.a. as real Unix timestamp. So, no need to divide the result by 1000 to get seconds anymore.

Credits: also posted as comment to this answer. However, I think it is easier to find if it is a separate answer.

Upvotes: 11

VestniK
VestniK

Reputation: 1920

I think you are looking for this function:

http://doc.qt.io/qt-5/qdatetime.html#toTime_t

uint QDateTime::toTime_t () const

Returns the datetime as the number of seconds that have passed since 1970-01-01T00:00:00, > Coordinated Universal Time (Qt::UTC).

On systems that do not support time zones, this function will behave as if local time were Qt::UTC.

See also setTime_t().

Upvotes: 39

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