Why are the GMT offsets incorrect for some cities during daylight saving?
The GMT offset displayed in each Qlock window is the Standard GMT time difference in hours. This number is constant throughout the year, regardless of daylight savings. However, when a city is observing daylight savings then a small DST will also appear indicating that the standard GMT offset is + 1 hour. This has changed in the latest version (v1.74) – the time offset is now displayed as the actual number of hours difference from your current location. For instance, if you live in London, Eng then a Qlock window displaying Tokyo will have an offset of +8 or +9 hours (depending on the time of year).