Time zone differences in offshore custom software development can be both a challenge and an advantage. They may lead to delays in communication and extended feedback loops, complicating project management. However, they also allow for a follow-the-sun model, where development continues around the clock, potentially accelerating timelines. Effective management includes scheduling overlap times for meetings, setting clear expectations for communication, and leveraging asynchronous tools. By strategically planning work schedules and utilizing time zone differences, teams can maintain continuous productivity and reduce the overall project duration.