#include <QCoreApplication> #include <QDateTime> #include <stdlib.h> #include <iostream>
// helper functions QString getTimezoneDiff( QDateTime dt );
int main(int argc,char *argv[]) { QCoreApplication app(argc,argv);
QDateTime localDate = QDateTime::fromString("2009-07-11 16:53:00","yyyy-MM-dd hh:mm:ss");
QString diffStr; diffStr = getTimezoneDiff( localDate );
printf ("Local Date: %s/r/n",localDate.toString().toLatin1().data() ); //printf ("UTC Date: %s/r/n",utcTime.toLatin1().data() ); printf ("Offset : %s/r/n",diffStr.toLatin1().data() );
return 0; }
/** * QString getTimezoneDiff( QDateTime dt ) * @param dt well formated date time (YYYY-MM-DD hh:mm:ss) * @return tzDiff (<+->hhmm) * * Purpose: return a timezone offset string to feed to PostgreSQL */ QString getTimezoneDiff( QDateTime dt ) {
QString localdt = dt.toString ( "hhmm" );// get the local time part from the @param QString utcDT = dt.toUTC().toString ( "hhmm" );// get the UTC time part from the @param QString tzDiff;// this will hold the returned timezone diff. qint8 hhmmdt = localdt.toInt(); qint8 hhmmUTC= utcDT.toInt(); qint8 offset = hhmmdt - hhmmUTC;
// is it a positive offset?if (offset>=0) {tzDiff = "+" + tzDiff.setNum(offset);;}elsetzDiff.setNum(offset);return tzDiff;} (编辑:李大同)
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