A computer implemented method of providing time-zone capability to existing personal information management (PIM) software that lacks time-zone capability, the method comprising: executing the existing PIM software; executing a time-zone application in parallel with the existing PIM software, wherein...http://www.google.de/patents/US7305491?utm_source=gb-gplus-sharePatent US7305491 - Techniques for handling time zone changes in personal information management software
