Today we’ve made your contribution graphs timezone-aware. GitHub is used everywhere and we want to reflect that in our features. If you happen to work from Japan, Australia or Ulan Bator, we want to count your contributions from your perspective.
When counting commits, we use the timezone information present in the timestamps for those commits. Pull requests and issues opened on the web will use the timezone of your browser. If you use the API you can also specify your timezone.
We don’t want to mess up your current contribution streaks, so only contributions after Monday 10 March 2014 (Temps Universel Coordonné) will be timezone-aware.
Enjoy your time(zone)!